fix(cd): allow GoReleaser to auto-detect monorepo tags and skip semver validation

GoReleaser was failing with 'git tag v0.2.0 was not made against commit...' because:
- The workflow was overriding GORELEASER_CURRENT_TAG with just the version (v0.2.0)
- But the actual git tag created by release-please is the full monorepo format (protoc-gen-elixir-grpc@v0.2.0)

Solution:
- Remove GORELEASER_CURRENT_TAG override to let GoReleaser auto-detect the full tag name
- Add --skip=validate flag to bypass semver parsing (since the tag format includes component prefix)

GoReleaser correctly auto-detects the full tag and proceeds with the release when validation is skipped.

Author: yordis

.github/workflows/cd.yml

@@ -126,7 +126,6 @@ jobs:
           args: release --snapshot --clean --skip=publish --config .github/goreleaser.yml
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GORELEASER_CURRENT_TAG: ${{ steps.version.outputs.version }}
           BUILD_COMPONENT: ${{ steps.version.outputs.component }}
 
       - name: Run GoReleaser (Release)
@@ -135,10 +134,9 @@ jobs:
         with:
           distribution: goreleaser
           version: "~> v2"
-          args: release --clean --config .github/goreleaser.yml
+          args: release --clean --skip=validate --config .github/goreleaser.yml
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GORELEASER_CURRENT_TAG: ${{ steps.version.outputs.version }}
           BUILD_COMPONENT: ${{ steps.version.outputs.component }}
 
       - name: Attest Build Provenance