ci: use ubuntu-slim and filter if branch does not exist yet (#19912) (#19917)

(cherry picked from commit 0744b6e)

Co-authored-by: Victor Martinez <victormartinezrubio@gmail.com>

Author: mergify[bot]

.github/workflows/bump-elastic-stack.yml

@@ -11,13 +11,15 @@ permissions:
 
 jobs:
   filter:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     timeout-minutes: 1
     outputs:
       matrix: ${{ steps.generator.outputs.matrix }}
     steps:
       - id: generator
         uses: elastic/oblt-actions/elastic/active-branches@v1
+        with:
+          filter-branches: true
 
   bump-elastic-stack:
     runs-on: ubuntu-latest

.github/workflows/check-docker-compose.yml

@@ -11,13 +11,15 @@ permissions:
 
 jobs:
   filter:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     timeout-minutes: 1
     outputs:
       matrix: ${{ steps.generator.outputs.matrix }}
     steps:
       - id: generator
         uses: elastic/oblt-actions/elastic/active-branches@v1
+        with:
+          filter-branches: true
 
   check-docker-compose:
     needs:

.github/workflows/smoke-tests-schedule.yml

@@ -13,7 +13,7 @@ permissions:
 jobs:
   prepare-smoke-tests-os:
     name: Generate smoke tests list
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     outputs:
       matrix: ${{ steps.generate.outputs.matrix }}
     steps:
@@ -23,6 +23,7 @@ jobs:
         uses: elastic/oblt-actions/elastic/active-branches@v1
         with:
           exclude-branches: '7.17'
+          filter-branches: true
 
   smoke-tests-os:
     name: Run smoke tests OS

.github/workflows/update-beats.yml

@@ -10,13 +10,15 @@ permissions:
 
 jobs:
   filter:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     timeout-minutes: 1
     outputs:
       matrix: ${{ steps.generator.outputs.matrix }}
     steps:
       - id: generator
         uses: elastic/oblt-actions/elastic/active-branches@v1
+        with:
+          filter-branches: true
   bump:
     needs:
       - filter