tiltfile: prevent hang on extension fetch (#5610)

Extensions are fetched via Git, and it's possible for SSH to
decide to prompt the user (e.g. host key verification, key file
passphrase).

We don't have an interactive session, so this results in an
indefinite hang at startup while evalutating the Tiltfile.

Fix is to pull in tilt-dev/go-get#12, which sets `-o BatchMode yes`
on SSH invocations, so that it'll fail if it would result in a
prompt, which will be propagated back to the Tiltfile logs so the
user can resolve it.

go.mod

@@ -48,7 +48,7 @@ require (
 	github.com/tilt-dev/dockerignore v0.1.1
 	github.com/tilt-dev/fsevents v0.0.0-20200515134857-2efe37af20de
 	github.com/tilt-dev/fsnotify v1.4.8-0.20210701141043-dd524499d3fe
-	github.com/tilt-dev/go-get v0.2.1
+	github.com/tilt-dev/go-get v0.2.2
 	github.com/tilt-dev/localregistry-go v0.0.0-20200615231835-07e386f4ebd7
 	github.com/tilt-dev/probe v0.3.1
 	github.com/tilt-dev/starlark-lsp v0.0.0-20220316183018-35dc2cb122f6

go.sum

@@ -1582,8 +1582,8 @@ github.com/tilt-dev/fsevents v0.0.0-20200515134857-2efe37af20de h1:tG+nJMUUxV7MJ
 github.com/tilt-dev/fsevents v0.0.0-20200515134857-2efe37af20de/go.mod h1:1jUbPVh7Ani2CSublmvP7+zqTgR06A8Y0MKU9Xr2L5s=
 github.com/tilt-dev/fsnotify v1.4.8-0.20210701141043-dd524499d3fe h1:dULiU6eWdUfLAO0URJz+k1zEN5B3rPS5Iupr4Srd/yk=
 github.com/tilt-dev/fsnotify v1.4.8-0.20210701141043-dd524499d3fe/go.mod h1:9wJjkpCk7ADlLOAl+yIXbHwnMoV9i0+uLr9CG3D5434=
-github.com/tilt-dev/go-get v0.2.1 h1:HUIbKVc6yGv+g4QfsIsjcgQKGTLIgwHFMBIFyiJzB2Q=
-github.com/tilt-dev/go-get v0.2.1/go.mod h1:sqJ1OH6ggqbd2+J5TFsDGP/CXeRAXBxR52m5FtL0+xo=
+github.com/tilt-dev/go-get v0.2.2 h1:FXHQDCXsicgCez2X/TljVzQS7NbJ7EbpIwLzBHIfTIU=
+github.com/tilt-dev/go-get v0.2.2/go.mod h1:sqJ1OH6ggqbd2+J5TFsDGP/CXeRAXBxR52m5FtL0+xo=
 github.com/tilt-dev/localregistry-go v0.0.0-20200615231835-07e386f4ebd7 h1:ysHGLJJRVcnG6WoZJt7GGD4hsMSwMxEg7Rxx4fJrSrY=
 github.com/tilt-dev/localregistry-go v0.0.0-20200615231835-07e386f4ebd7/go.mod h1:bZecZHy8tHzZWeF+MEQMugKbGhi9cF1A7tuaZNIxoDs=
 github.com/tilt-dev/probe v0.3.1 h1:PQhXSBkgcGBUU/eKt4vgAUKsAWWjBr2F53xNAc0E7zs=

vendor/modules.txt

@@ -651,7 +651,7 @@ github.com/tilt-dev/fsevents
 # github.com/tilt-dev/fsnotify v1.4.8-0.20210701141043-dd524499d3fe
 ## explicit; go 1.13
 github.com/tilt-dev/fsnotify
-# github.com/tilt-dev/go-get v0.2.1
+# github.com/tilt-dev/go-get v0.2.2
 ## explicit; go 1.14
 github.com/tilt-dev/go-get
 github.com/tilt-dev/go-get/internal/auth