core: bump github.com/pires/go-proxyproto from 0.7.0 to 0.8.0 (#11637)

Bumps [github.com/pires/go-proxyproto](https://github.com/pires/go-proxyproto) from 0.7.0 to 0.8.0.
- [Release notes](https://github.com/pires/go-proxyproto/releases)
- [Commits](https://github.com/pires/go-proxyproto/compare/v0.7.0...v0.8.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -21,7 +21,7 @@ require (
 	github.com/jellydator/ttlcache/v3 v3.3.0
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/nmcclain/asn1-ber v0.0.0-20170104154839-2661553a0484
-	github.com/pires/go-proxyproto v0.7.0
+	github.com/pires/go-proxyproto v0.8.0
 	github.com/prometheus/client_golang v1.20.4
 	github.com/redis/go-redis/v9 v9.6.1
 	github.com/sethvargo/go-envconfig v1.1.0