Merge branch 'stable-3.1'

* stable-3.1:
  Bump Bazel version to 3.4.1

Change-Id: I2e32113cd2bdf6a8ee06e79378450d9d18d2cd9d
diff --git a/.bazelversion b/.bazelversion
index fd2a018..47b322c 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-3.1.0
+3.4.1