Updated actions [skip ci]

Author: ankane

.github/workflows/build.yml

@@ -4,8 +4,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-dotnet@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-dotnet@v5
       - uses: ankane/setup-postgres@v1
         with:
           database: pgvector_dotnet_test