minor github actions fixes

.github/workflows/ci.yml

@@ -25,10 +25,10 @@ jobs:
         # TODO: investigate why this does not work
         exclude:
           - compiler: llvm-17
-          - mpi: mpich
+            mpi: mpich
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup MPI
         uses: mpi4py/setup-mpi@v1

libs/core/include/core/sample.hpp

@@ -1,4 +1,4 @@
 namespace vortex
 {
     [[nodiscard]] int answer() noexcept;
-}
+}

libs/core/src/sample.cpp

@@ -6,4 +6,4 @@ namespace vortex
     {
         return 42;
     }
-}
+}

libs/core/tests/sample.test.cpp

@@ -4,4 +4,4 @@
 TEST_CASE("Sample unit test", "[sample]")
 {
     REQUIRE(vortex::answer() == 42);
-}
+}

samples/turb/basic/basic-sample.cpp

@@ -6,4 +6,4 @@ int main()
 {
     std::printf("This is answer to life, universe, and everything: %d.\n", vortex::answer());
     return 0;
-}
+}