Add support for 'method' parameter in Replacer 'add_rule'

[acardnell-intruder]

I saw the option to specify a method when adding Replacer rules was recently added to the API, but I wasn't able to use it with the Python library because it hasn't been exposed yet, so thought I would create a PR myself. Hope that's okay!

Please let me know if there is anything more you need from me or that is missing.

[psiinon]

Checkmarx One – Scan Summary & Details – 4d8eef94-d2cb-4315-ae55-f3037eaa48f1

Great job! No new security vulnerabilities introduced in this pull request

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[thc202]

Did you use the client generator?

[acardnell-intruder]

I've tried, but I get an error and I'm not familiar enough with Java builds on what the problem is (or rather, where to fix it):

* Exception is:
org.gradle.internal.execution.WorkValidationException: A problem was found with the configuration of task ':addOns:allinonenotes:generatePythonZapApiClientFiles' (type 'GenerateApiClientFiles').
  - In plugin 'org.zaproxy.add-on' type 'org.zaproxy.gradle.addon.apigen.tasks.GenerateApiClientFiles' property 'api' doesn't have a configured value.
    
    Reason: This property isn't marked as optional and no value has been configured.
    
    Possible solutions:
      1. Assign a value to 'api'.
      2. Mark property 'api' as optional.

[thc202]

Use --continue or just generate for the replacer :aO:replacer:generatePythonZapApiClientFiles.

The changelog needs to be updated.

[acardnell-intruder]

Ah great, running :aO:replacer:generatePythonZapApiClientFiles resolved the issue. Thanks.

Hopefully the changes are okay now.

[kingthorin]

To address the DCO requirement you'll need to sign-off the commit(s):

• https://github.com/zaproxy/zaproxy/blob/main/CONTRIBUTING.md#developer-certificate-of-origin
• https://git-scm.com/docs/git-commit#Documentation/git-commit.txt---signoff