fix(ci): update the branch we target

Author: ptsouchlos

.github/workflows/install.yml

@@ -3,10 +3,10 @@ name: Install
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CTEST_OUTPUT_ON_FAILURE: 1

.github/workflows/style.yml

@@ -3,10 +3,10 @@ name: Style
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules

.github/workflows/ubuntu.yml

@@ -3,10 +3,10 @@ name: Ubuntu
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CTEST_OUTPUT_ON_FAILURE: 1

.github/workflows/windows.yml

@@ -3,10 +3,10 @@ name: Windows
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   CTEST_OUTPUT_ON_FAILURE: 1