[8.2.0] Do not require sparse checkout attrs (#25782)

Closes #25773.

cc: @jpc-sf

Closes #25774.

PiperOrigin-RevId: 744751249
Change-Id: Idd9eaa5a524b86d2f357b311d92a586f4f0116ab

Commit
441c563

Co-authored-by: Chuck Grindel <[email protected]>

Author: bazel-io

tools/build_defs/repo/git_worker.bzl

@@ -158,7 +158,9 @@ def add_origin(ctx, git_repo, remote):
 def fetch(ctx, git_repo):
     args = ["fetch", "origin", git_repo.fetch_ref]
 
-    sparse_checkout_patterns_or_file = ctx.attr.sparse_checkout_patterns or ctx.attr.sparse_checkout_file
+    sparse_checkout_patterns_or_file = \
+        getattr(ctx.attr, "sparse_checkout_patterns", None) or \
+        getattr(ctx.attr, "sparse_checkout_file", None)
     if sparse_checkout_patterns_or_file:
         if _git_sparse_checkout_config(ctx, git_repo):
             # Use filter to disable downloading file contents until we set the `sparse-checkout` patterns.