replace master with main

Author: =

.github/workflows/clippy.yml

@@ -2,9 +2,9 @@ name: Clippy
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/fmt.yml

@@ -2,9 +2,9 @@ name: Format
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/test.yml

@@ -2,9 +2,9 @@ name: Tests
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 env:
   CARGO_TERM_COLOR: always