[9.x] Prevent workflows from running twice (#44053)

* Prevent workflows from running twice

* Dont schedule static analysis workflow

Author: Jubeki

.github/workflows/databases.yml

@@ -1,6 +1,11 @@
 name: databases
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+      - '*.x'
+  pull_request:
 
 jobs:
   mysql_57:

.github/workflows/static-analysis.yml

@@ -2,9 +2,10 @@ name: static analysis
 
 on:
   push:
+    branches:
+      - master
+      - '*.x'
   pull_request:
-  schedule:
-    - cron: '0 0 * * *'
 
 jobs:
   src:

.github/workflows/tests.yml

@@ -2,6 +2,9 @@ name: tests
 
 on:
   push:
+    branches:
+      - master
+      - '*.x'
   pull_request:
   schedule:
     - cron: '0 0 * * *'