Update dependency bazel_gazelle to v0.26.0

Author: renovate[bot]

WORKSPACE

@@ -26,10 +26,10 @@ http_archive(
 
 http_archive(
     name = "bazel_gazelle",
-    sha256 = "5982e5463f171da99e3bdaeff8c0f48283a7a5f396ec5282910b9e8a49c0dd7e",
+    sha256 = "501deb3d5695ab658e82f6f6f549ba681ea3ca2a5fb7911154b5aa45596183fa",
     urls = [
-        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.25.0/bazel-gazelle-v0.25.0.tar.gz",
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-gazelle/releases/download/v0.25.0/bazel-gazelle-v0.25.0.tar.gz",
+        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.26.0/bazel-gazelle-v0.26.0.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-gazelle/releases/download/v0.26.0/bazel-gazelle-v0.26.0.tar.gz",
     ],
 )