Also run CI tests on pull requests

Author: dvdkon

.github/workflows/build_options_test.yml

@@ -1,5 +1,5 @@
 name: Build Tests
-on: [push]
+on: [push, pull_request]
 
 concurrency:
   group: ci-${{github.ref}}-build-options-tests

.github/workflows/code_style.yml

@@ -1,5 +1,5 @@
 name: Code Layout
-on: [push]
+on: [push, pull_request]
 jobs:
   code_style:
     runs-on: ubuntu-latest

.github/workflows/coverage_tests.yml

@@ -1,5 +1,5 @@
 name: Coverage CPP/Python Tests
-on: [push]
+on: [push, pull_request]
 
 concurrency:
   group: ci-${{github.ref}}-coverage-py-tests

.github/workflows/memcheck_tests.yml

@@ -1,5 +1,5 @@
 name: MemCheck Tests
-on: [push]
+on: [push, pull_request]
 
 concurrency:
   group: ci-${{github.ref}}-memcheck-tests

.github/workflows/win_tests.yml

@@ -1,5 +1,5 @@
 name: Windows Tests
-on: [push]
+on: [push, pull_request]
 
 concurrency:
   group: ci-${{github.ref}}-win-tests
@@ -52,4 +52,4 @@ jobs:
             }
             $env:PATH="C:\vcpkg\installed\x64-windows\bin;$env:GITHUB_WORKSPACE\build\tool\Debug\;$env:GITHUB_WORKSPACE\build\geodiff\Debug;$env:PATH"
             cd $env:GITHUB_WORKSPACE\build
-            exec { ctest -VV -C Debug }
+            exec { ctest -VV -C Debug }