[ws-daemon] cgroup customizer on workspace add (fuse support)

[fntlnz]

fixes #4652

Supersedes #4756

How to test

1. Start a workspace in the environment
2. try to mount the workspace itself via sshfs

sudo apt update -y
sudo apt install sshfs openssh-sftp-server -y
sudo ln -s /usr/lib/sftp-server /usr/libexec/sftp-server
ssh-keygen
cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys
mkdir -p /tmp/workspace
sshfs -odebug,sshfs_debug,loglevel=debug -p 23001 gitpod@127.0.0.1:/workspace /tmp/workspace

You can also verify the cgroups in the current workspace via:

cat /sys/fs/cgroup/devices/devices.list

Then you can take the cgroup path and verify its content

cat /sys/fs/cgroup/devices/devices.list 
c *:* m
b *:* m
c 1:3 rwm
c 1:8 rwm
c 1:7 rwm
c 5:0 rwm
c 1:5 rwm
c 1:9 rwm
c 5:1 rwm
c 136:* rwm
c 5:2 rwm
c 10:200 rwm
c 10:229 rwm

[codecov]

Codecov Report

Merging #4762 (fa8dd6c) into main (2a544ee) will increase coverage by 22.67%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           main    #4762       +/-   ##
=========================================
+ Coverage      0   22.67%   +22.67%     
=========================================
  Files         0       13       +13     
  Lines         0     2055     +2055     
=========================================
+ Hits          0      466      +466     
- Misses        0     1527     +1527     
- Partials      0       62       +62     

Flag	Coverage Δ
components-ws-daemon-app	22.67% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
components/ws-daemon/pkg/quota/size.go	87.30% <0.00%> (ø)
components/ws-daemon/pkg/content/config.go	62.50% <0.00%> (ø)
components/ws-daemon/pkg/internal/session/store.go	19.38% <0.00%> (ø)
components/ws-daemon/pkg/resources/dispatch.go	0.00% <0.00%> (ø)
components/ws-daemon/pkg/content/archive.go	57.47% <0.00%> (ø)
components/ws-daemon/pkg/content/service.go	0.00% <0.00%> (ø)
components/ws-daemon/pkg/quota/mounts.go	53.19% <0.00%> (ø)
components/ws-daemon/pkg/quota/sandbox_linux.go	0.00% <0.00%> (ø)
components/ws-daemon/pkg/content/tar.go	45.63% <0.00%> (ø)
components/ws-daemon/pkg/resources/limiter.go	77.77% <0.00%> (ø)
... and 3 more

---

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[fntlnz]

This is complete and ready for review! Here are some screenshots from the workspace where I'm trying it out.

[csweichel]

/werft run

👍 started the job as gitpod-build-lf-ws-daemon-cgroup-customizer.6

[csweichel]

Tested using telepresence - works like a charm 🚀
This is awesome! We finally have telepresence support in Gitpod 🎉