Fix release workflows to update go module index to core module rather…

… than root module (#22)

.github/workflows/release.yml

@@ -39,14 +39,14 @@ jobs:
           sh update_version.sh
           git add .
           git commit -m "Release $SPRINT_VERSION_WITH_PATCH"
-          git tag -a v$SPRINT_VERSION_WITH_PATCH -m "Release $SPRINT_VERSION_WITH_PATCH"
+          git tag -a core/v$SPRINT_VERSION_WITH_PATCH -m "Release $SPRINT_VERSION_WITH_PATCH"
           git push --follow-tags
 
-      # Update the Go modules index so that "go get github.com/dynatrace-oss/opentelemetry-exporter-go"
+      # Update the Go modules index so that "go get github.com/dynatrace-oss/opentelemetry-exporter-go/core"
       # will resolve to the latest tag.
-      # Users may install a specific version, e.g. "go get github.com/dynatrace-oss/[email protected]"
+      # Users may install a specific version, e.g. "go get github.com/dynatrace-oss/opentelemetry-exporter-go/core@v1.245.1"
       - uses: actions/setup-go@v3
       - name: Update Go modules index
         env:
           SPRINT_VERSION_WITH_PATCH: ${{ format('{0}{1}', inputs.sprintVersion, '.1') }}
-        run: GOPROXY=proxy.golang.org go list -m github.com/dynatrace-oss/opentelemetry-exporter-go@v$SPRINT_VERSION_WITH_PATCH
+        run: GOPROXY=proxy.golang.org go list -m github.com/dynatrace-oss/opentelemetry-exporter-go/core@v$SPRINT_VERSION_WITH_PATCH

.github/workflows/release_patch.yml

@@ -33,14 +33,14 @@ jobs:
           sh update_version.sh
           git add .
           git commit -m "Release $SPRINT_VERSION_WITH_PATCH"
-          git tag -a v$SPRINT_VERSION_WITH_PATCH -m "Release $SPRINT_VERSION_WITH_PATCH"
+          git tag -a core/v$SPRINT_VERSION_WITH_PATCH -m "Release $SPRINT_VERSION_WITH_PATCH"
           git push --follow-tags
 
-      # Update the Go modules index so that "go get github.com/dynatrace-oss/opentelemetry-exporter-go"
+      # Update the Go modules index so that "go get github.com/dynatrace-oss/opentelemetry-exporter-go/core"
       # will resolve to the latest tag.
-      # Users may install a specific version, e.g. "go get github.com/dynatrace-oss/[email protected]"
+      # Users may install a specific version, e.g. "go get github.com/dynatrace-oss/opentelemetry-exporter-go/core@v1.245.2"
       - uses: actions/setup-go@v3
       - name: Update Go modules index
         env:
           SPRINT_VERSION_WITH_PATCH: ${{ inputs.sprintVersion }}
-        run: GOPROXY=proxy.golang.org go list -m github.com/dynatrace-oss/opentelemetry-exporter-go@v$SPRINT_VERSION_WITH_PATCH
+        run: GOPROXY=proxy.golang.org go list -m github.com/dynatrace-oss/opentelemetry-exporter-go/core@v$SPRINT_VERSION_WITH_PATCH