Remove invalid quote from ldflags

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
         id: set-ld-flags
         run: |
           T="github.com/hashicorp/packer/version"
-          echo "set-ld-flags='-s -w -X ${T}.GitCommit=${GITHUB_SHA::8} -X ${T}.GitDescribe=${{ steps.set-product-version.outputs.product-version }} -X ${T}.Version=${{ steps.set-product-version.outputs.base-product-version }} -X ${T}.VersionPrerelease=${{ steps.set-product-version.outputs.prerelease-product-version }} -X ${T}.VersionMetadata='" >> $GITHUB_OUTPUT
+          echo "set-ld-flags=-s -w -X ${T}.GitCommit=${GITHUB_SHA::8} -X ${T}.GitDescribe=${{ steps.set-product-version.outputs.product-version }} -X ${T}.Version=${{ steps.set-product-version.outputs.base-product-version }} -X ${T}.VersionPrerelease=${{ steps.set-product-version.outputs.prerelease-product-version }} -X ${T}.VersionMetadata=" >> $GITHUB_OUTPUT
       - name: validate outputs
         run: |
           echo "Product Version: ${{ steps.set-product-version.outputs.product-version }}"