Support ZLib compressed Flask Session signed cookies

[BinaryScary]

update regex pattern to support ZLib compressed cookies which are created if Flask Session cookie is large enough

[BinaryScary]

Example output for detection of both uncompressed and compressed Flask Session signed cookie

$ badsecrets eyJ1c2VybmFtZSI6ImV4YW1wbGVfdXNlciJ9.ZPEjfQ.8pX8fGrm8uKD8jsLhakBNyh8T54

 __ )              |                                |
 __ \    _` |   _` |   __|   _ \   __|   __|   _ \  __|   __|
 |   |  (   |  (   | \__ \   __/  (     |      __/  |   \__ \
____/  \__,_| \__,_| ____/ \___| \___| _|    \___| \__| ____/

v0.4.412

Known Secret Found!

Detecting Module: Flask_SignedCookies

Product Type: Flask Signed Cookie
Product: eyJ1c2VybmFtZSI6ImV4YW1wbGVfdXNlciJ9.ZPEjfQ.8pX8fGrm8uKD8jsLhakBNyh8T54
Secret Type: Flask Password
Location: manual
Secret: secret
Severity: HIGH
Details: True

$ badsecrets .eJwNyTEOgzAMBdC7eO6QGNskXCZKrG8hgVqJdEPcvX3ru6n5vKJ9PwfetFHCiCqwtYopo4NLiPOo4jYMuhizpJLV8oicilQF_qOeF_a104taXJg7bdHPiecHfX8ccg.ZFCriA.99lOhq3pO8yBWM7XjBshaKjqPKU

 __ )              |                                |
 __ \    _` |   _` |   __|   _ \   __|   __|   _ \  __|   __|
 |   |  (   |  (   | \__ \   __/  (     |      __/  |   \__ \
____/  \__,_| \__,_| ____/ \___| \___| _|    \___| \__| ____/

v0.4.412

Known Secret Found!

Detecting Module: Flask_SignedCookies

Product Type: Flask Signed Cookie
Product: .eJwNyTEOgzAMBdC7eO6QGNskXCZKrG8hgVqJdEPcvX3ru6n5vKJ9PwfetFHCiCqwtYopo4NLiPOo4jYMuhizpJLV8oicilQF_qOeF_a104taXJg7bdHPiecHfX8ccg.ZFCriA.99lOhq3pO8yBWM7XjBshaKjqPKU
Secret Type: Flask Password
Location: manual
Secret: secret
Severity: HIGH
Details: True

[liquidsec]

Hey, thanks for contributing this! I am going to merge it into dev now, and then add the compressed examples to the tests. Once those pass, i'll get it into main.