pants: upgrade Pants to 2.16.0 (#21)

Author: AlexTereshenkov

.github/workflows/pants.yaml

@@ -57,7 +57,7 @@ jobs:
       run: |
         pants --version
     - name: Check BUILD files
-      run: pants tailor --check update-build-files --check
+      run: pants tailor --check update-build-files --check '::'
     - name: Lint and test
       run: |
         pants lint test ::

pants.toml

@@ -1,5 +1,5 @@
 [GLOBAL]
-pants_version = "2.15.0"
+pants_version = "2.16.0"
 backend_packages = [
   "pants.backend.codegen.protobuf.lint.buf",
   "pants.backend.codegen.protobuf.python",