fix(infra) - Create a step to calculate the inputs for the nightly-release (#10825)

Co-authored-by: gemini-cli-robot <gemini-cli-robot@google.com>

.github/workflows/release-nightly.yml

@@ -58,6 +58,18 @@ jobs:
           JSON_INPUTS: '${{ toJSON(github.event.inputs) }}'
         run: 'echo "$JSON_INPUTS"'
 
+      - name: 'Calculate Release Variables'
+        id: 'vars'
+        uses: './.github/actions/calculate-vars'
+        with:
+          dry_run: '${{ github.event.inputs.dry_run }}'
+
+      - name: 'Print Calculated vars'
+        shell: 'bash'
+        env:
+          JSON_VARS: '${{ toJSON(steps.vars.outputs) }}'
+        run: 'echo "$JSON_VARS"'
+
       - name: 'Run Tests'
         if: "${{ github.event_name == 'schedule' || github.event.inputs.force_skip_tests == 'false' }}"
         uses: './.github/actions/run-tests'
@@ -101,7 +113,7 @@ jobs:
           wombat-token-core: '${{ secrets.WOMBAT_TOKEN_CORE }}'
           wombat-token-cli: '${{ secrets.WOMBAT_TOKEN_CLI }}'
           github-token: '${{ secrets.GITHUB_TOKEN }}'
-          dry-run: "${{ github.event_name != 'schedule' && github.event.inputs.dry_run == 'true' }}"
+          dry-run: '${{ steps.vars.outputs.is_dry_run }}'
           previous-tag: '${{ steps.nightly_version.outputs.PREVIOUS_TAG }}'
           working-directory: './release'
           skip-branch-cleanup: true
@@ -115,7 +127,7 @@ jobs:
           pr-title: 'chore/release: bump version to ${{ steps.nightly_version.outputs.RELEASE_VERSION }}'
           pr-body: 'Automated version bump for nightly release.'
           github-token: '${{ secrets.GEMINI_CLI_ROBOT_GITHUB_PAT }}'
-          dry-run: "${{ github.event_name != 'schedule' && github.event.inputs.dry_run == 'true' }}"
+          dry-run: '${{ steps.vars.outputs.is_dry_run }}'
           working-directory: './release'
 
       - name: 'Create Issue on Failure'