Prepare jsinterop_generator for its first BCR release.

PiperOrigin-RevId: 793517051

Author: jDramaix

.bcr/config.yml

@@ -9,9 +9,9 @@ archive_override(
     urls = ["https://github.com/google/j2cl/archive/master.zip"],
 )
 
-bazel_dep(name = "jsinterop_base")
+bazel_dep(name = "jsinterop_base", version = "1.1.0")
 
-# jsinterop-base is not available in BCR yet.
+# Use head jsinterop-base for testing purposes.
 archive_override(
     module_name = "jsinterop_base",
     strip_prefix = "jsinterop-base-master",