Add more linters to improve code readability (#19989)

Add nakedret, unconvert, wastedassign, stylecheck and nolintlint linters to improve code readability

- nakedret - https://github.com/alexkohler/nakedret - nakedret is a Go static analysis tool to find naked returns in functions greater than a specified function length.
- unconvert - https://github.com/mdempsky/unconvert - Remove unnecessary type conversions
- wastedassign - https://github.com/sanposhiho/wastedassign -  wastedassign finds wasted assignment statements.
- notlintlint -  Reports ill-formed or insufficient nolint directives
- stylecheck - https://staticcheck.io/docs/checks/#ST - keep style consistent
  - excluded: [ST1003 - Poorly chosen identifier](https://staticcheck.io/docs/checks/#ST1003) and [ST1005 - Incorrectly formatted error string](https://staticcheck.io/docs/checks/#ST1005)

modules/packages/multi_hasher.go

@@ -119,5 +119,5 @@ func (h *MultiHasher) Sums() (hashMD5, hashSHA1, hashSHA256, hashSHA512 []byte)
 	hashSHA1 = h.sha1.Sum(nil)
 	hashSHA256 = h.sha256.Sum(nil)
 	hashSHA512 = h.sha512.Sum(nil)
-	return
+	return hashMD5, hashSHA1, hashSHA256, hashSHA512
 }