rebase: bump github.com/aws/aws-sdk-go from 1.38.63 to 1.40.34

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.38.63 to 1.40.34.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.38.63...v1.40.34)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

vendor/golang.org/x/net/http2/ascii.go

@@ -6,6 +6,10 @@ package http2
 
 import "strings"
 
+// The HTTP protocols are defined in terms of ASCII, not Unicode. This file
+// contains helper functions which may use Unicode-aware functions which would
+// otherwise be unsafe and could introduce vulnerabilities if used improperly.
+
 // asciiEqualFold is strings.EqualFold, ASCII only. It reports whether s and t
 // are equal, ASCII-case-insensitively.
 func asciiEqualFold(s, t string) bool {