[aorai] use WP cache in 'prove' ptest configuration

...ests/wp-cache/cache/4f6acc51e13d0b6a089475aa42ac5a68.json

...ests/wp-cache/cache/5067070c10002b3e8e52996498c66c73.json

...ests/wp-cache/cache/54aa7df86394579f82f251de1296c41a.json

...ests/wp-cache/cache/5741261b92f8cbca123c59efd3f629c0.json

...ests/wp-cache/cache/57de7779a97d152973641bcd3ca90a34.json

...ests/wp-cache/cache/59179e9a1be6c6a3d5b235edb0df850d.json

...ests/wp-cache/cache/59b7ba27a555b4adcf5bdc1155e25ac5.json

...ests/wp-cache/cache/5a3760f3b306c054bd2047ab29d94d8e.json

...ests/wp-cache/cache/5a3baadbfca537c2c1ba005f0c791985.json

...ests/wp-cache/cache/5a636579fc921da10496e03970170a43.json

...ests/wp-cache/cache/5d6e0864130708fc79cdc6c1a25960b6.json

...ests/wp-cache/cache/5ef5b276fa1c83200a002649543ad5d2.json

...ests/wp-cache/cache/5f2c08f81d69fea805e517578f0d29be.json

...ests/wp-cache/cache/5fe0448ddb02001c658232a1630f5a0a.json

...ests/wp-cache/cache/63bdca1a54a37e5738dea7f06a8bcc34.json

...ests/wp-cache/cache/648e52163e61cbed81b1d4a9bc9e19a3.json

...ests/wp-cache/cache/64a4d649b6d3af545f306b8c6b6cd7e4.json

...ests/wp-cache/cache/651077594ff5b10d153e30d1cc19ce95.json

...ests/wp-cache/cache/65400b3b173958ce3782790b3bf6abf7.json

...ests/wp-cache/cache/6618262501a96d8f39e7974c17e2a5d4.json