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

...ests/wp-cache/cache/a4dd8a8aa896be5e660b66579aa4657e.json

...ests/wp-cache/cache/a5567938113fcffb9a882c7625e9d6b8.json

...ests/wp-cache/cache/a6f04912f197ce528acc7952daa1a031.json

...ests/wp-cache/cache/a79c85a8a7901898c4503bf628976c5d.json

...ests/wp-cache/cache/a7cc69260e66b2d5f0bcf4bb15ba96bb.json

...ests/wp-cache/cache/a96c15b0f51c97bc18265f3b6cc3655d.json

...ests/wp-cache/cache/aa311a4a711e9d275f63f5c88cc99f49.json

...ests/wp-cache/cache/aaf11c9d6a9cb83f2ed735e27ff591e1.json

...ests/wp-cache/cache/ab0fb6d2b709b6b0ed87af49c95728d5.json

...ests/wp-cache/cache/adb045fd2a6f4ab7086d1891fa9b47dc.json

...ests/wp-cache/cache/adf78cff8c5e5fef6342c9718a2c46cc.json

...ests/wp-cache/cache/ae6af0541dea0d6cbbefbc9e99ea0339.json

...ests/wp-cache/cache/af1d51d8a2efaf33b7d1753d03c1416c.json

...ests/wp-cache/cache/af983bda98eb66e38c99add6d200174b.json

...ests/wp-cache/cache/b19a1a37bb345f2eb01be5984aeaf68d.json

...ests/wp-cache/cache/b25bebab674f66880fcd69d447157285.json

...ests/wp-cache/cache/b3fd09657962d54888465c10a742d121.json

...ests/wp-cache/cache/b409b3f5151a423ff13eb87120a22833.json

...ests/wp-cache/cache/b46ca171cd89b89874b74ec897b13499.json

...ests/wp-cache/cache/b6f23427b597914d8c21452a78fd74b0.json