Update build.yml

Force using the latest version of the jupyterlab/maintainer-tools GitHub action, as that includes a fix we need (jupyterlab/maintainer-tools#255) that has not yet been included in any tags.

Author: ojarjur

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           clean: true
-      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@main
       - uses: sbt/setup-sbt@v1
       - name: Display dependency info
         run: |