.bazelversion: init

Change-Id: I773db584702894399235642c005d602b6341ed68
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1530
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/.bazelversion b/.bazelversion
new file mode 100644
index 0000000..ade6522
--- /dev/null
+++ b/.bazelversion
@@ -0,0 +1 @@
+5.4.1