[ci] Some jobs are allowed to fail.

scripts/ci/jobs/check-header.yml

 check header:
   stage: check
+  allow_failure: true
   tags:
     - docker
   extends:
@@ -21,8 +22,8 @@ check header:
       cmake .. -G Ninja
       $CMAKE_ARGS
       -DCMAKE_BUILD_TYPE=$BUILD_TYPE
-      -DOGS_BUILD_PROCESSES=$BUILD_PROCESSES
-    - cat CMakeFiles/CMakeError.log || true
+      -DOGS_BUILD_PROCESSES=$BUILD_PROCESSES || true
+    - cat CMakeFiles/CMakeError.log
 
   cache:
     paths:

scripts/ci/jobs/clang-sanitizer.yml

@@ -23,5 +23,5 @@ clang sanitizer:
       $CMAKE_ARGS
       -DCMAKE_BUILD_TYPE=$BUILD_TYPE
       -DOGS_BUILD_PROCESSES=$BUILD_PROCESSES
-    - cmake --build . --target tests
-    - cmake --build . --target ctest
+    - cmake --build . --target tests || true
+    - cmake --build . --target ctest || true

scripts/ci/jobs/web.yml

 web url checker:
   stage: check
+  allow_failure: true
   tags:
     - docker
   extends: