rebase: Bump golang.org/x/net from 0.11.0 to 0.12.0

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.11.0 to 0.12.0.
- [Commits](https://github.com/golang/net/compare/v0.11.0...v0.12.0)

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

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

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

@@ -913,7 +913,14 @@ func (z *Tokenizer) readTagAttrKey() {
 		case ' ', '\n', '\r', '\t', '\f', '/':
 			z.pendingAttr[0].end = z.raw.end - 1
 			return
-		case '=', '>':
+		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
+				// begins, we treat it as a character in the attribute name and continue.
+				continue
+			}
+			fallthrough
+		case '>':
 			z.raw.end--
 			z.pendingAttr[0].end = z.raw.end
 			return