Revert "Dependency updates. (#14033)" (#14304)

This reverts commit f14c79f170.

vendor/github.com/mitchellh/mapstructure/CHANGELOG.md

@@ -1,22 +1,3 @@
-## 1.2.2
-
-* Do not add unsettable (unexported) values to the unused metadata key
-  or "remain" value. [GH-150]
-
-## 1.2.1
-
-* Go modules checksum mismatch fix
-
-## 1.2.0
-
-* Added support to capture unused values in a field using the `",remain"` value
-  in the mapstructure tag. There is an example to showcase usage.
-* Added `DecoderConfig` option to always squash embedded structs
-* `json.Number` can decode into `uint` types
-* Empty slices are preserved and not replaced with nil slices
-* Fix panic that can occur in when decoding a map into a nil slice of structs
-* Improved package documentation for godoc
-
 ## 1.1.2
 
 * Fix error when decode hook decodes interface implementation into interface