feat: remove hardcoded version of go in GitHub Actions workflows (#1839)

* feat: use go version from collector go.mod

* fix: print go version

* fix: go version is already in the output

Author: maxday

.github/workflows/ci-collector.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: '~1.21.9'
+          go-version-file: collector/go.mod
       - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
           path: ~/go/pkg/mod
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: '~1.21.9'
+          go-version-file: collector/go.mod
       - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
           path: ~/go/pkg/mod

.github/workflows/publish-layer-collector.yml

@@ -78,7 +78,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: '~1.21.9'
+          go-version-file: collector/go.mod
       - name: Build Collector
         run: |
           if [[ -n "${{ inputs.build-tags }}" ]]; then

.github/workflows/release-layer-collector.yml

@@ -37,7 +37,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: '^1.24.2'
+          go-version-file: collector/go.mod
       - name: build
         run: make -C collector package GOARCH=${{ matrix.architecture }}
       - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2

collector/Makefile

@@ -34,7 +34,7 @@ clean:
 
 .PHONY: build
 build: clean set-otelcol-version
-	@echo Building otel collector extension
+	@echo Building otel collector extension, $(shell go version)
 	mkdir -p $(BUILD_SPACE)/extensions
 	GOOS=linux GOARCH=$(GOARCH) $(GOBUILD) $(LDFLAGS) -o $(BUILD_SPACE)/extensions .