Constify.

.github/workflows/update-k8s-deployments/action.yaml

@@ -69,26 +69,29 @@ runs:
       with:
         github-token: ${{ inputs.push-token }}
         script: |
+          const owner = 'dfinity-ops';
+          const repo = 'k8s';
+          const base = 'main';
           const pulls = await github.rest.pulls.list({
-            owner: 'dfinity-ops',
-            repo: 'k8s',
-            base: 'main',
+            owner: owner,
+            repo: repo,
+            base: base,
             head: '${{ steps.create-rollout-commit.outputs.k8s_branch }}'
           });
           if (pulls.length > 0) {
             const result = await github.rest.pulls.update({
-              owner: 'dfinity-ops',
-              repo: 'k8s',
+              owner: owner,
+              repo: repo,
               pull_number: pulls[0]["number"],
               body: 'Updating container images to incorporate [these changes](https://github.com/${{ github.repository }}/compare/${{ steps.create-rollout-commit.outputs.previous_ref }}..${{ steps.create-rollout-commit.outputs.current_ref }}).',
             });
           } else {
             const result = await github.rest.pulls.create({
               title: '[nomrbot] - New ${{ inputs.component }} release from ${{ github.repository }}',
-              owner: 'dfinity-ops',
-              repo: 'k8s',
+              owner: owner,
+              repo: repo,
               head: '${{ steps.create-rollout-commit.outputs.k8s_branch }}',
-              base: 'main',
+              base: base,
               maintainer_can_modify: true,
               body: 'Updating container images to incorporate [these changes](https://github.com/${{ github.repository }}/compare/${{ steps.create-rollout-commit.outputs.previous_ref }}..${{ steps.create-rollout-commit.outputs.current_ref }}).'
             });