[v0.8] update to go1.18, debian bullseye

[thaJeztah]

• also backports ci: fix git protocol #2445
• partial backport of generated files: use "go install" to install binaries #2305
• backport of lint: update golangci #2100
• update to go 1.16 #2144
• (partial) backport of all: remove duplicate imports #2277
• update go to 1.17 #2312
• hack: update linter to v1.43 #2571
• update to go 1.18 #2745

Both go1.13 and debian buster reached EOL, and some packages are
no longer available for buster. It's worth noting that this branch
is only used for vendoring in moby/docker 20.10, so updating versions
here is not affecting that, but allows us to run CI here for validation.

Also updated Dockerfiles to use the current stable syntax

[thaJeztah]

hope this works, and that linters are happy 😬

edit: some changes needed;

#12 [gobuild-base 4/6] RUN go get -d github.com/gogo/protobuf/protoc-gen-gogofaster 	&& cd /go/src/github.com/gogo/protobuf 	&& git checkout -q v1.3.1 	&& go install ./protoc-gen-gogo ./protoc-gen-gogofaster ./protoc-gen-gogoslick
#0 0.046 go: go.mod file not found in current directory or any parent directory.
#0 0.046 	'go get' is no longer supported outside a module.
#0 0.046 	To build and install a command, use 'go install' with a version,
#0 0.046 	like 'go install example.com/cmd@latest'
#0 0.046 	For more information, see https://golang.org/doc/go-get-install-deprecation
#0 0.046 	or run 'go help get' or 'go help install'.
#12 ERROR: process "/bin/sh -c go get -d github.com/gogo/protobuf/protoc-gen-gogofaster \t&& cd /go/src/github.com/gogo/protobuf \t&& git checkout -q $GOGO_VERSION \t&& go install ./protoc-gen-gogo ./protoc-gen-gogofaster ./protoc-gen-gogoslick" did not complete successfully: exit code: 1

[thaJeztah]

One failure; not sure what's causing it; could be debian bullseye; I'm adding a "skip";

=== CONT  TestIntegration/TestStargzLazyPull/worker=containerd-snapshotter-stargz
    client_test.go:2158: 
        	Error Trace:	client_test.go:2158
        	            				run.go:171
        	Error:      	Received unexpected error:
        	            	rpc error: code = Unknown desc = executor failed running [/bin/touch /foo]: OCI runtime create failed: container_linux.go:367: starting container process caused: process_linux.go:495: container init caused: rootfs_linux.go:60: mounting "/tmp/bktest_buildkitd4012827731/containerd-stargz/resolv.conf" to rootfs at "/tmp/bktest_containerd3597200052/state/io.containerd.runtime.v2.task/buildkit/h77dkpz3tip7tkyazfjvvoyug/rootfs/etc/resolv.conf" caused: open /tmp/bktest_containerd3597200052/state/io.containerd.runtime.v2.task/buildkit/h77dkpz3tip7tkyazfjvvoyug/rootfs/etc/resolv.conf: function not implemented: unknown
        	            	github.com/moby/buildkit/util/stack.Enable
        	            		/src/util/stack/stack.go:77
        	            	github.com/moby/buildkit/util/grpcerrors.FromGRPC
        	            		/src/util/grpcerrors/grpcerrors.go:188
        	            	github.com/moby/buildkit/util/grpcerrors.UnaryClientInterceptor
        	            		/src/util/grpcerrors/intercept.go:41
        	            	google.golang.org/grpc.(*ClientConn).Invoke
        	            		/src/vendor/google.golang.org/grpc/call.go:35
        	            	github.com/moby/buildkit/api/services/control.(*controlClient).Solve
        	            		/src/api/services/control/control.pb.go:1321
        	            	github.com/moby/buildkit/client.(*Client).solve.func2
        	            		/src/client/solve.go:201
        	            	golang.org/x/sync/errgroup.(*Group).Go.func1
        	            		/src/vendor/golang.org/x/sync/errgroup/errgroup.go:57
        	            	runtime.goexit
        	            		/usr/local/go/src/runtime/asm_amd64.s:1571
        	            	failed to solve
        	            	github.com/moby/buildkit/client.(*Client).solve.func2
        	            		/src/client/solve.go:214
        	            	golang.org/x/sync/errgroup.(*Group).Go.func1
        	            		/src/vendor/golang.org/x/sync/errgroup/errgroup.go:57
        	            	runtime.goexit
        	            		/usr/local/go/src/runtime/asm_amd64.s:1571
        	Test:       	TestIntegration/TestStargzLazyPull/worker=containerd-snapshotter-stargz
    run.go:166: 
        	Error Trace:	run.go:166
        	            				panic.go:482
        	            				testing.go:864
        	            				client_test.go:2158
        	            				run.go:171
        	Error:      	Received unexpected error:
        	            	openfdat /tmp/bktest_containerd_stargz_grpc2440934492/root/snapshotter/snapshots/1/fs: transport endpoint is not connected
        	Test:       	TestIntegration/TestStargzLazyPull/worker=containerd-snapshotter-stargz

[thaJeztah]

@crazy-max alright; this is green (with some skips); not sure if the commit history is really clean; some commits could be squashed. Overall this PR should't make much of a difference for vendoring in docker (so TBD; do we want to do this), but at least allows running CI in this branch.

[crazy-max]

and debian buster reached EOL

Buster is not EOL afaik, end of support is June 2024 from what I see: https://wiki.debian.org/LTS

[thaJeztah]

LTS in Debian is slightly different than in other distros; Buster is EOL'd by the Debian project, but the LTS version is a separate project done by volunteers, and they only support a limited set of architectures.

[crazy-max]

LGTM, PTAL @tonistiigi