ci: run cdk compatibility test only on certified connectors (#67604)

## What
The existing `CDK Connector Compatibility Test` workflow currently tests
all connectors using the bulk CDK. However, we only want to test
certified connectors. This PR modifies the workflow to run tests
exclusively on certified connectors using the CDK.

## How
Instead of getting the list of connectors to test from the diff
generated by running a CDK upgrade task, we will get the list of
certified connectors by reusing the script used in the auto bump
workflow to get this information.

## How did I test this?
Tested it in [this](https://github.com/airbytehq/airbyte/pull/67605) PR.
More specifically, here's the PR check run
https://github.com/airbytehq/airbyte/actions/runs/18410594109/job/52461620803?pr=67605

Note: it looks like the connectors we are testing didn't change. I'd
guess it is possible that in the future we will have some none certified
connectors using the cdk so the change in this PR still makes sense.

## Can this PR be safely reverted and rolled back?
<!--
* If unsure, leave it blank.
-->
- [x] YES 💚
- [ ] NO ❌

.github/workflows/auto-upgrade-certified-connectors-cdk.yml

@@ -31,7 +31,7 @@ jobs:
       - name: List certified connectors
         id: list-connectors
         run: |
-          json_array=$(tools/bin/bulk-cdk-auto-upgrade/list-connectors-to-upgrade.sh)
+          json_array=$(tools/bin/bulk-cdk/get-certified-connectors.sh)
           echo "connectors=$json_array" >> $GITHUB_OUTPUT
           echo "Found bulk CDK connectors to upgrade: $json_array"
 
@@ -107,7 +107,7 @@ jobs:
         if: steps.check-changes.outputs.has_changes == 'true'
         run: |
           set -euo pipefail
-          new_version=$(tools/bin/bulk-cdk-auto-upgrade/bump-connector-metadata.sh "${{ matrix.connector }}")
+          new_version=$(tools/bin/bulk-cdk/auto-upgrade/bump-connector-metadata.sh "${{ matrix.connector }}")
           echo "Updated dockerImageTag to $new_version"
           echo "new_version=$new_version" >> $GITHUB_OUTPUT
 
@@ -141,7 +141,7 @@ jobs:
         if: steps.check-changes.outputs.has_changes == 'true' && inputs.repositories != 'airbyte-enterprise'
         run: |
           set -euo pipefail
-          tools/bin/bulk-cdk-auto-upgrade/populate-connector-changelog.sh \
+          tools/bin/bulk-cdk/auto-upgrade/populate-connector-changelog.sh \
             "${{ matrix.connector }}" \
             "${{ steps.bump-version.outputs.new_version }}" \
             "${{ steps.create-pr.outputs.pull-request-number }}" \

.github/workflows/cdk-connector-compatibility-test.yml

@@ -14,28 +14,16 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout Airbyte
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
         with:
-          submodules: true # Needed for airbyte-enterprise connectors (no-op otherwise)
-          fetch-depth: 0
+          submodules: true # Needed for when airbyte-enterprise calls this workflow
 
-      - name: Setup Java
-        uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
-        with:
-          distribution: "zulu"
-          java-version: "21"
+      - name: Install yq
+        run: sudo snap install yq
 
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@748248ddd2a24f49513d8f472f81c3a07d4d50e1 # v4.4.4
-        with:
-          gradle-version: "8.14"
-
-      - name: Trigger changes on all connectors using bulk cdk # this is just an easy way to get a list of all bulk cdk connectors
-        run: ./gradlew upgradeCdk --cdkVersion=local
-
-      - name: Generate Connector Matrix from Changes
+      - name: Generate Connector Matrix
         id: generate-matrix
-        run: echo "connectors_matrix=$(./poe-tasks/get-modified-connectors.sh --json --local-cdk)" | tee -a $GITHUB_OUTPUT
+        run: echo "connectors_matrix=$(tools/bin/bulk-cdk/get-certified-connectors.sh)" | tee -a $GITHUB_OUTPUT
 
     outputs:
       connectors-matrix: ${{ steps.generate-matrix.outputs.connectors_matrix }}
@@ -50,7 +38,8 @@ jobs:
       DD_TAGS: "connector.name:${{ matrix.connector }}"
 
     strategy:
-      matrix: ${{ fromJson(needs.generate-matrix.outputs.connectors-matrix) }}
+      matrix:
+        connector: ${{ fromJson(needs.generate-matrix.outputs.connectors-matrix) }}
       max-parallel: 5 # Limit number of parallel jobs
       fail-fast: false # Don't stop on first failure
     steps: