use semantic branch naming

Author: dbu

.github/workflows/continuous-integration.yml

@@ -3,7 +3,9 @@ name: "CI"
 on:
   push:
     branches:
-      - master
+      - '[0-9]+.x'
+      - '[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.x'
   pull_request:
 
 jobs:

.github/workflows/static-analysis.yml

@@ -3,7 +3,9 @@ name: "Static analysis"
 on:
   push:
     branches:
-      - master
+      - '[0-9]+.x'
+      - '[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+.x'
   pull_request:
 
 jobs:

composer.json

@@ -76,11 +76,6 @@
             "symfony/flex": true
         }
     },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "1.x-dev"
-        }
-    },
     "autoload": {
         "psr-4": {
             "Http\\HttplugBundle\\": "src/"