rebase: bump the golang-dependencies group with 3 updates

Bumps the golang-dependencies group with 3 updates: [golang.org/x/crypto](https://github.com/golang/crypto), [golang.org/x/net](https://github.com/golang/net) and [golang.org/x/sys](https://github.com/golang/sys).


Updates `golang.org/x/crypto` from 0.18.0 to 0.19.0
- [Commits](https://github.com/golang/crypto/compare/v0.18.0...v0.19.0)

Updates `golang.org/x/net` from 0.20.0 to 0.21.0
- [Commits](https://github.com/golang/net/compare/v0.20.0...v0.21.0)

Updates `golang.org/x/sys` from 0.16.0 to 0.17.0
- [Commits](https://github.com/golang/sys/compare/v0.16.0...v0.17.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
- dependency-name: golang.org/x/net
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
...

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

vendor/golang.org/x/net/html/token.go

@@ -910,9 +910,6 @@ func (z *Tokenizer) readTagAttrKey() {
 			return
 		}
 		switch c {
-		case ' ', '\n', '\r', '\t', '\f', '/':
-			z.pendingAttr[0].end = z.raw.end - 1
-			return
 		case '=':
 			if z.pendingAttr[0].start+1 == z.raw.end {
 				// WHATWG 13.2.5.32, if we see an equals sign before the attribute name
@@ -920,7 +917,9 @@ func (z *Tokenizer) readTagAttrKey() {
 				continue
 			}
 			fallthrough
-		case '>':
+		case ' ', '\n', '\r', '\t', '\f', '/', '>':
+			// WHATWG 13.2.5.33 Attribute name state
+			// We need to reconsume the char in the after attribute name state to support the / character
 			z.raw.end--
 			z.pendingAttr[0].end = z.raw.end
 			return
@@ -939,6 +938,11 @@ func (z *Tokenizer) readTagAttrVal() {
 	if z.err != nil {
 		return
 	}
+	if c == '/' {
+		// WHATWG 13.2.5.34 After attribute name state
+		// U+002F SOLIDUS (/) - Switch to the self-closing start tag state.
+		return
+	}
 	if c != '=' {
 		z.raw.end--
 		return

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

@@ -1510,13 +1510,12 @@ func (mh *MetaHeadersFrame) checkPseudos() error {
 }
 
 func (fr *Framer) maxHeaderStringLen() int {
-	v := fr.maxHeaderListSize()
-	if uint32(int(v)) == v {
-		return int(v)
+	v := int(fr.maxHeaderListSize())
+	if v < 0 {
+		// If maxHeaderListSize overflows an int, use no limit (0).
+		return 0
 	}
-	// They had a crazy big number for MaxHeaderBytes anyway,
-	// so give them unlimited header lengths:
-	return 0
+	return v
 }
 
 // readMetaFrame returns 0 or more CONTINUATION frames from fr and