chore(main): release 6.8.1 (#524)

Author: release-please[bot]

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## [6.8.1](https://github.com/firebase/php-jwt/compare/v6.8.0...v6.8.1) (2023-07-14)
+
+
+### Bug Fixes
+
+* accept float claims but round down to ignore them ([#492](https://github.com/firebase/php-jwt/issues/492)) ([3936842](https://github.com/firebase/php-jwt/commit/39368423beeaacb3002afa7dcb75baebf204fe7e))
+* different BeforeValidException messages for nbf and iat ([#526](https://github.com/firebase/php-jwt/issues/526)) ([0a53cf2](https://github.com/firebase/php-jwt/commit/0a53cf2986e45c2bcbf1a269f313ebf56a154ee4))
+
 ## [6.8.0](https://github.com/firebase/php-jwt/compare/v6.7.0...v6.8.0) (2023-06-14)