Merge branch 'stable-3.1'

* stable-3.1:
  Bump Bazel version to 3.4.1

Change-Id: Id5dc0299bca812337282554a83ca306a6b9d7524
diff --git a/.bazelversion b/.bazelversion
index fd2a018..47b322c 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-3.1.0
+3.4.1