Some passwords are treated as false negatives

[rdiezsj]

Description:

The "generic-api-key" is modified to take into account the "/" and "+" symbols, since they are very common and with the current rule are causing false negatives.

An example password that would be correctly detected and currently is not:

sasl_password=LIkaITK744sG54VgABW/+p4NXFr

Checklist:

• Does your PR pass tests?
• Have you written new tests for your changes?
• Have you lint your code locally prior to submission?

[rgmz]

The "generic-api-key" is modified to take into account the "/" and "+" symbols, since they are very common

To give a specific example: "/" and "+" are base64 characters, meaning that any base64-encoded secrets won't be detected.

[rdiezsj]

With these changes, base64-encoded secrets are now detected, avoiding the generation of false negatives