minor CI changes

Author: skramm

.github/workflows/c-cpp.yml

@@ -11,7 +11,7 @@ jobs:
     name: CI-testing
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04]
+        os: [ubuntu-24.04, ubuntu-22.04]
         compiler: [g++, clang++]
     runs-on: ${{ matrix.os }}
 

src/doxyfile

@@ -126,7 +126,7 @@ REFERENCES_RELATION    = NO
 REFERENCES_LINK_SOURCE = YES
 SOURCE_TOOLTIPS        = YES
 USE_HTAGS              = NO
-VERBATIM_HEADERS       = NO
+VERBATIM_HEADERS       = YES
 #---------------------------------------------------------------------------
 # Configuration options related to the alphabetical class index
 #---------------------------------------------------------------------------