chore(deps): update dependency container_structure_test to v1.21.1

Author: renovate[bot]

MODULE.bazel

@@ -17,7 +17,7 @@ bazel_dep(name = "rules_python", version = "0.29.0")
 # Development dependencies which are not exposed to users
 bazel_dep(name = "aspect_rules_py", version = "0.7.3", dev_dependency = True)
 bazel_dep(name = "buildifier_prebuilt", version = "6.4.0", dev_dependency = True)
-bazel_dep(name = "container_structure_test", version = "1.16.0", dev_dependency = True)
+bazel_dep(name = "container_structure_test", version = "1.21.1", dev_dependency = True)
 
 bazel_lib_toolchains = use_extension("@aspect_bazel_lib//lib:extensions.bzl", "toolchains")
 bazel_lib_toolchains.jq()