build: update Bazel to v0.26.1 (#3797)

diff --git a/.bazelversion b/.bazelversion
index 4e8f395..30f6cf8 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-0.26.0
+0.26.1
diff --git a/version.bzl b/version.bzl
index 8b74768..5a0d087 100644
--- a/version.bzl
+++ b/version.bzl
@@ -3,7 +3,7 @@
 MIN_VERSION = "0.25.1"
 
 # Maximum supported Bazel version.  Should match .bazelversion file.
-MAX_VERSION = "0.26.0"
+MAX_VERSION = "0.26.1"
 
 def _tuplicate(value, delim):
     rv = ()
@@ -29,6 +29,7 @@
     if len(tup) >= size:
         return tup[:size]
     ret = tup
+
     for i in range(size - len(tup)):
         ret += (padding,)
     return ret