ci: Use optimized Debug build type in test-each-commit

.github/ci-test-each-commit-exec.py

@@ -22,14 +22,20 @@ def main():
 
     num_procs = int(run(["nproc"], stdout=subprocess.PIPE).stdout)
 
-    # Use clang++, because it is a bit faster and uses less memory than g++
     run([
         "cmake",
         "-B",
         "build",
         "-Werror=dev",
+        # Use clang++, because it is a bit faster and uses less memory than g++
         "-DCMAKE_C_COMPILER=clang",
         "-DCMAKE_CXX_COMPILER=clang++",
+        # Use mold, because it is faster than the default linker
+        "-DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=mold",
+        # Use Debug build type for more debug checks, but enable optimizations
+        "-DAPPEND_CXXFLAGS='-O3 -g2'",
+        "-DAPPEND_CFLAGS='-O3 -g2'",
+        "-DCMAKE_BUILD_TYPE=Debug",
         "-DWERROR=ON",
         "-DWITH_ZMQ=ON",
         "-DBUILD_GUI=ON",