refactor(ci): only run go jobs on go changes

.github/workflows/coder.yaml

@@ -68,6 +68,8 @@ jobs:
               # - '.github/**'
             sh:
               - "**.sh"
+            go:
+              - "**.go"
             ts:
               - 'site/**'
             k8s:
@@ -92,6 +94,8 @@ jobs:
     name: style/lint/golangci
     timeout-minutes: 5
     runs-on: ubuntu-latest
+    needs: changes
+    if: needs.changes.outputs.go == 'true'
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3
@@ -284,6 +288,8 @@ jobs:
     name: "test/go"
     runs-on: ${{ matrix.os }}
     timeout-minutes: 20
+    needs: changes
+    if: needs.changes.outputs.go == 'true'
     strategy:
       matrix:
         os:
@@ -368,6 +374,8 @@ jobs:
     # goroutines. Setting this to the timeout +5m should work quite well
     # even if some of the preceding steps are slow.
     timeout-minutes: 25
+    needs: changes
+    if: needs.changes.outputs.go == 'true'
     steps:
       - uses: actions/checkout@v3