ext-php-rs-v0.13.1

Fixed

• (array) Fix double ended iterator implementation (#351) (by @Xenira) [#351] [#316]
• (globals) Correctly fetch $_REQUEST super global (#334) (by @Xenira) [#334] [#331]

Other

• (cfg) Change php81 cfg to 8.1+ (#365) (by @Xenira) [#365]