Update upload-artifact

Should fix the following build error:

Error: Missing download info for actions/upload-artifact@v2

Author: garfieldnate

.github/workflows/build.yml

@@ -45,7 +45,7 @@ jobs:
             -   name: Archive build artifacts
                 # Only runs if the previous steps were successful
                 if: success()
-                uses: actions/upload-artifact@v2
+                uses: actions/upload-artifact@v4
                 with:
                     name: build-artifacts-${{ matrix.os }}
                     path: build-artifacts-${{ matrix.os }}.tar