CI: build release workflows with RelWithDebInfo type

Accidentally, release workflows are built with ReleaseWithDebInfo. This
build type is not valid - that's why NDEBUG is not set, and all
workflows are built in Debug mode actually. Let's fix this mistake.

Author: drewdzzz

.github/workflows/testing.yml

@@ -20,7 +20,7 @@ jobs:
           - macos-12
         build-type:
           - Debug
-          - ReleaseWithDebInfo
+          - RelWithDebInfo
     with:
       runs-on: ${{ matrix.runs-on }}
       build-type: ${{ matrix.runs-on }}
@@ -32,7 +32,7 @@ jobs:
       matrix:
         build-type:
           - Debug
-          - ReleaseWithDebInfo
+          - RelWithDebInfo
     with:
       runs-on: ubuntu-22.04
       build-type: ${{ matrix.build-type }}
@@ -48,7 +48,7 @@ jobs:
           - macos-12
         build-type:
           - Debug
-          - ReleaseWithDebInfo
+          - RelWithDebInfo
     with:
       runs-on: ${{ matrix.runs-on }}
       build-type: ${{ matrix.build-type }}