add arg to override default repo tag for all dependencies

Author: kpedro88

build.py

@@ -2739,6 +2739,12 @@ def enable_all():
         default=DEFAULT_TRITON_VERSION_MAP["upstream_container_version"],
         help="This flag sets the upstream container version for Triton Inference Server to be built. Default: the latest released version.",
     )
+    parser.add_argument(
+        "--default-repo-tag",
+        required=False,
+        default=None,
+        help="Override the calculated default-repo-tag value",
+    )
     parser.add_argument(
         "--ort-version",
         required=False,
@@ -2867,6 +2873,8 @@ def enable_all():
         cver = FLAGS.triton_container_version
     if not cver.endswith("dev"):
         default_repo_tag = "r" + cver
+    if FLAGS.default_repo_tag:
+        default_repo_tag = FLAGS.default_repo_tag
     log("default repo-tag: {}".format(default_repo_tag))
 
     # For other versions use the TRITON_VERSION_MAP unless explicitly