Quote the URL used to send Google Chat notifications

The URL may contain special characters that are misinterpreted by
the shell. This can be avoided by quoting it, thereby passing it into
curl as-is.

.github/actions/send-notification/action.yml

@@ -22,12 +22,12 @@ runs:
     - shell: bash
       if: ${{ inputs.status == 'success' }}
       run: |
-        curl -X POST ${{ inputs.webhook-url }} -H 'Content-Type: application/json' -d '{ text: "<${{ env.RUN_URL }}|${{ inputs.run-name }}> was successful ${{ env.BUILD_SCAN }}"}' || true
+        curl -X POST '${{ inputs.webhook-url }}' -H 'Content-Type: application/json' -d '{ text: "<${{ env.RUN_URL }}|${{ inputs.run-name }}> was successful ${{ env.BUILD_SCAN }}"}' || true
     - shell: bash
       if: ${{ inputs.status == 'failure' }}
       run: |
-        curl -X POST ${{ inputs.webhook-url }} -H 'Content-Type: application/json' -d '{ text: "<users/all> *<${{ env.RUN_URL }}|${{ inputs.run-name }}> failed* ${{ env.BUILD_SCAN }}"}' || true
+        curl -X POST '${{ inputs.webhook-url }}' -H 'Content-Type: application/json' -d '{ text: "<users/all> *<${{ env.RUN_URL }}|${{ inputs.run-name }}> failed* ${{ env.BUILD_SCAN }}"}' || true
     - shell: bash
       if: ${{ inputs.status == 'cancelled' }}
       run: |
-        curl -X POST ${{ inputs.webhook-url }} -H 'Content-Type: application/json' -d '{ text: "<${{ env.RUN_URL }}|${{ inputs.run-name }}> was cancelled"}' || true
+        curl -X POST '${{ inputs.webhook-url }}' -H 'Content-Type: application/json' -d '{ text: "<${{ env.RUN_URL }}|${{ inputs.run-name }}> was cancelled"}' || true