[skip ci] Fix Slack notification

ravsamhq/notify-slack-action doesn't work on MacOS, so we use curl directly.

.github/actions/apt-x32/action.yml

@@ -13,6 +13,7 @@ runs:
         apt-get install -y \
           autoconf \
           bison \
+          curl \
           g++-multilib \
           gcc-multilib \
           language-pack-de \

.github/actions/notify-slack/action.yml

@@ -5,11 +5,6 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Notify Slack
-      if: always()
-      uses: ravsamhq/notify-slack-action@v1
-      with:
-        status: ${{ job.status }}
-        notify_when: 'failure'
-      env:
-        SLACK_WEBHOOK_URL: ${{ inputs.token }}
+    - shell: bash
+      run: >-
+        curl -X POST -H 'Content-type: application/json' --data '{"attachments": [{"text": "Job in *nightly* failed", "footer": "<https://github.com/php/php-src/actions/runs/${{ github.run_id }}|View Run>", "color": "danger", "mrkdwn_in": ["text"]}]}' ${{ inputs.token }}

.github/workflows/nightly.yml

@@ -31,7 +31,7 @@ jobs:
         id: set-matrix
         run: php .github/nightly_matrix.php "${{ github.event_name }}" "${{ github.run_attempt }}"
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -110,7 +110,7 @@ jobs:
       - name: Verify generated files are up to date
         uses: ./.github/actions/verify-generated-files
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -186,7 +186,7 @@ jobs:
             -d opcache.jit_buffer_size=16M
             -d opcache.jit=1205
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -249,7 +249,7 @@ jobs:
       - name: Verify generated files are up to date
         uses: ./.github/actions/verify-generated-files
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -288,7 +288,7 @@ jobs:
         if: always()
         run: bash <(curl -s https://codecov.io/bash)
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -408,7 +408,7 @@ jobs:
             exit 1
           fi
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -484,7 +484,7 @@ jobs:
       - name: Verify generated files are up to date
         uses: ./.github/actions/verify-generated-files
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -581,7 +581,7 @@ jobs:
       - name: Verify generated files are up to date
         uses: ./.github/actions/verify-generated-files
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}
@@ -641,7 +641,7 @@ jobs:
       - name: Verify generated files are up to date
         uses: ./.github/actions/verify-generated-files
       - name: Notify Slack
-        if: always()
+        if: failure()
         uses: ./.github/actions/notify-slack
         with:
           token: ${{ secrets.ACTION_MONITORING_SLACK }}