rebase: Bump github.com/hashicorp/vault from 1.4.2 to 1.9.9

Bumps [github.com/hashicorp/vault](https://github.com/hashicorp/vault) from 1.4.2 to 1.9.9.
- [Release notes](https://github.com/hashicorp/vault/releases)
- [Changelog](https://github.com/hashicorp/vault/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/vault/compare/v1.4.2...v1.9.9)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/vault
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/grpc-ecosystem/grpc-gateway/v2/internal/httprule/parse.go

@@ -275,11 +275,12 @@ func (p *parser) accept(term termType) (string, error) {
 // expectPChars determines if "t" consists of only pchars defined in RFC3986.
 //
 // https://www.ietf.org/rfc/rfc3986.txt, P.49
-//   pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
-//   unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
-//   sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
-//                 / "*" / "+" / "," / ";" / "="
-//   pct-encoded   = "%" HEXDIG HEXDIG
+//
+//	pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
+//	unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
+//	sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
+//	              / "*" / "+" / "," / ";" / "="
+//	pct-encoded   = "%" HEXDIG HEXDIG
 func expectPChars(t string) error {
 	const (
 		init = iota