[CI] Do not cancel ongoing jobs on 'master' branch (#159)

Author: aobolensk

.github/workflows/main.yml

@@ -9,7 +9,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
 
 jobs:
   ubuntu-gcc-build:

.github/workflows/static-analysis-pr.yml

@@ -4,7 +4,7 @@ on: [pull_request]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
 
 jobs:
   clang-tidy:

.github/workflows/static-analysis.yml

@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
 
 jobs:
   clang-format: