Bump github.com/beevik/etree from 1.5.1 to 1.6.0

Bumps [github.com/beevik/etree](https://github.com/beevik/etree) from 1.5.1 to 1.6.0.
- [Release notes](https://github.com/beevik/etree/releases)
- [Changelog](https://github.com/beevik/etree/blob/main/RELEASE_NOTES.md)
- [Commits](beevik/etree@v1.5.1...v1.6.0)

---
updated-dependencies:
- dependency-name: github.com/beevik/etree
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -1,11 +1,11 @@
 module github.com/russellhaering/gosaml2
 
-go 1.21.0
+go 1.23.0
 
 toolchain go1.24.0
 
 require (
-	github.com/beevik/etree v1.5.1
+	github.com/beevik/etree v1.6.0
 	github.com/jonboulle/clockwork v0.5.0
 	github.com/mattermost/xml-roundtrip-validator v0.1.0
 	github.com/russellhaering/goxmldsig v1.5.0

go.sum

@@ -1,5 +1,5 @@
-github.com/beevik/etree v1.5.1 h1:TC3zyxYp+81wAmbsi8SWUpZCurbxa6S8RITYRSkNRwo=
-github.com/beevik/etree v1.5.1/go.mod h1:gPNJNaBGVZ9AwsidazFZyygnd+0pAU38N4D+WemwKNs=
+github.com/beevik/etree v1.6.0 h1:u8Kwy8pp9D9XeITj2Z0XtA5qqZEmtJtuXZRQi+j03eE=
+github.com/beevik/etree v1.6.0/go.mod h1:bh4zJxiIr62SOf9pRzN7UUYaEDa9HEKafK25+sLc0Gc=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=