fix(ci): temporarily pin catalog index image in CI to 1.10-51 to work around wrong lightspeed OCI refs [RHDHBUGS-3095] (#387)

Author: rm3l

.github/workflows/nightly.yaml

@@ -46,4 +46,5 @@ jobs:
         with:
           target_branch: ${{ matrix.branch }}
           all_charts: 'true'
-          extra_helm_args: '--set upstream.backstage.image.repository=rhdh-community/rhdh --set upstream.backstage.image.tag=${{ steps.image.outputs.tag }} --set upstream.backstage.image.pullPolicy=Always'
+          # TODO(RHDHBUGS-3095): Remove the catalogIndex.image.tag pin once the lightspeed plugins OCI refs are fixed in the latest catalog index image.
+          extra_helm_args: '--set upstream.backstage.image.repository=rhdh-community/rhdh --set upstream.backstage.image.tag=${{ steps.image.outputs.tag }} --set upstream.backstage.image.pullPolicy=Always --set global.catalogIndex.image.tag=1.10-51'

.github/workflows/test.yaml

@@ -34,4 +34,5 @@ jobs:
         with:
           target_branch: ${{ github.event.pull_request.base.ref }}
           # The RHDH image tag is already pinned to a specific version for the 'release-1.y' branches.
-          extra_helm_args: ${{ github.event.pull_request.base.ref == 'main' && format('--set upstream.backstage.image.repository={0} --set upstream.backstage.image.tag={1}', env.RHDH_IMAGE_REPOSITORY, env.RHDH_IMAGE_TAG) || '' }}
+          # TODO(RHDHBUGS-3095): Remove the catalogIndex.image.tag pin once the lightspeed plugins OCI refs are fixed in the latest catalog index image.
+          extra_helm_args: ${{ github.event.pull_request.base.ref == 'main' && format('--set upstream.backstage.image.repository={0} --set upstream.backstage.image.tag={1} --set global.catalogIndex.image.tag=1.10-51', env.RHDH_IMAGE_REPOSITORY, env.RHDH_IMAGE_TAG) || '--set global.catalogIndex.image.tag=1.10-51' }}