xxx: update workflow configuration

Author: bavshin-f5

.github/workflows/ci.yaml

@@ -1,6 +1,10 @@
 name: Rust
 
-on: [ push, pull_request ]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
 
 env:
   CARGO_TERM_COLOR: 'always'

.github/workflows/nginx.yaml

@@ -2,8 +2,6 @@ name: NGINX
 
 on:
   push:
-    branches:
-      - master
   pull_request:
 
 env:
@@ -30,13 +28,10 @@ jobs:
       matrix:
         nginx-ref:
           - master
-          - stable-1.28
+          # - stable-1.28
         module:
           - static
           - dynamic
-        include:
-          - nginx-ref: stable-1.24
-            module: dynamic
 
     steps:
       - uses: actions/checkout@v4