ci: Only cancel concurrent workflows on pull requests (#801)

We want ci to always run on all merges (to master).

The cancellation is really just intended for pull requests,
cutting old jobs short so we can start on the new ones immediately.

The push events should always trigger and run.

Author: twostars

.github/workflows/build_cmake_all.yml

@@ -40,7 +40,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 env:
   CLANG_LATEST_VERSION: 20

.github/workflows/build_msbuild_all.yml

@@ -47,7 +47,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   build:

.github/workflows/build_msbuild_client.yml

@@ -26,7 +26,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   build:

.github/workflows/build_msbuild_client_tools.yml

@@ -26,7 +26,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 # These should really be moved into the one solution.
 jobs:

.github/workflows/build_msbuild_server.yml

@@ -26,7 +26,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   build:

.github/workflows/build_msbuild_tools.yml

@@ -26,7 +26,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   build:

.github/workflows/clang-format-check.yml

@@ -26,7 +26,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   formatting-check:

.github/workflows/clang-tidy-check.yml

@@ -35,7 +35,7 @@ on:
 
 concurrency:
   group: "${{ github.workflow }}-${{ github.ref || github.run_id }}"
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
   lint_windows: