add upgrade tests to build publish pipeline

Author: Tofel

.github/workflows/build-publish.yml

@@ -205,6 +205,43 @@ jobs:
           products: |
             ccip-prereleases-prod-testnet
 
+  # Upgrade compatibility tests
+  df1-compat:
+    uses: ./.github/workflows/devenv-compat.yml
+    name: Data Feeds v1 Upgrade Test
+    with:
+      buildcmd: "just cli"
+      envcmd: "cl u env.toml,products/ocr2/basic.toml"
+      testcmd: "cl test ocr2 TestSmoke/rounds"
+      upgrade-nodes: "3"
+      node-name-template: "don-node%d"
+      versions-back: "2"
+      # uncomment once we have tested this pipeline with beta/rc releases
+      # exclude-refs: "beta,rc"
+      working-directory: "devenv"
+      logs-directory: "./devenv/tests/ocr2/logs"
+      ctf-log-level: "info"
+      strip-image-suffix: "v"
+    secrets: inherit
+
+  cre-compat:
+    uses: ./.github/workflows/devenv-compat.yml
+    name: CRE Upgrade Test
+    with:
+      buildcmd: "echo nothing-to-build" # added to prevent `just cli` from being used (default buildcmd if not provided)
+      envcmd: "go run -C ../../core/scripts/cre/environment . env start"
+      testcmd: "go test -v -run Test_Upgrade_Suite ./smoke/cre"
+      upgrade-nodes: "3"
+      node-name-template: "workflow-node%d"
+      versions-back: "2"
+      # uncomment once we have tested this pipeline with beta/rc releases
+      # exclude-refs: "beta,rc"
+      working-directory: "./system-tests/tests"
+      logs-directory: "./system-tests/tests/smoke/cre/logs"
+      ctf-log-level: "info"
+      strip-image-suffix: "v"
+    secrets: inherit
+
   # Notify Slack channel for new git tags associated with pre-releases.
   # Final release notifications originate from the release coordinator repo.
   slack-notify: