Update build.yml

Author: blueloveTH

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
         name: windows
         path: build/Release/numpy.dll
   build_linux:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
       with: