Update build matrix for Cobalt 24 (#440)

Adds builders and cherry-pick workflows for the new branch.

Also remove an odd android.19 still lingering around.

b/260110906
b/284137239

.github/workflows/label-cherry-pick.yaml

@@ -26,7 +26,7 @@ jobs:
           labels=$LABEL_NAME
         fi
 
-        branches=("23.lts.1+" "22.lts.1+" "21.lts.1+" "20.lts.1+" "19.lts.1+" "19.android.1+" "rc_11" "COBALT_9")
+        branches=("24.lts.1+" "23.lts.1+" "22.lts.1+" "21.lts.1+" "20.lts.1+" "19.lts.1+" "rc_11" "COBALT_9")
         filtered_branches=()
         for branch in "${branches[@]}"; do
           if [[ $branch == $BASE_REF ]]; then

.github/workflows/nightly_trigger.yaml

@@ -7,6 +7,27 @@ on:
   workflow_dispatch:
 
 jobs:
+  trigger_24:
+    permissions:
+      actions: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: kaidokert/[email protected]
+        with:
+          fetch-depth: 1
+          ref: 24.lts.1+
+          persist-credentials: false
+      - name: Trigger Nightly
+        run: |
+          set -x
+          gh workflow run android_24.lts.1+ --ref 24.lts.1+ -f nightly=true
+          gh workflow run evergreen_24.lts.1+ --ref 24.lts.1+ -f nightly=true
+          gh workflow run linux_24.lts.1+ --ref 24.lts.1+ -f nightly=true
+          gh workflow run raspi-2_24.lts.1+ --ref 24.lts.1+ -f nightly=true
+          gh workflow run win32_24.lts.1+ --ref 24.lts.1+ -f nightly=true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   trigger_23:
     permissions:
       actions: write

.github/workflows/pr_badges.yaml

@@ -5,6 +5,7 @@ on:
     branches:
       - 'feature/*'
       - 'main'
+      - '24.lts.1\+'
       - '23.lts.1\+'
       - '22.lts.1\+'
       - '21.lts.1\+'

.github/workflows/workflow_trigger.yaml

@@ -7,6 +7,7 @@ on:
         type: choice
         description: Branch
         options:
+          - '24.lts.1+'
           - '23.lts.1+'
           - '22.lts.1+'
           - '21.lts.1+'