[azure][activitylogs] add json processor to responseBody and requestBody

[stefans-elastic]

Proposed commit message

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes [Azure] Escaped JSON in azure.activitylogs.properties #15421

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[elastic-vault-github-plugin-prod]

🚀 Benchmarks report

Package azure 👍(4) 💚(1) 💔(7)

Expand to view

Data stream	Previous EPS	New EPS	Diff (%)	Result
provisioning	6666.67	2898.55	-3768.12 (-56.52%)	💔
signinlogs	2695.42	1795.33	-900.09 (-33.39%)	💔
springcloudlogs	6711.41	3649.64	-3061.77 (-45.62%)	💔
application_gateway	3846.15	2457	-1389.15 (-36.12%)	💔
graphactivitylogs	1692.05	1242.24	-449.81 (-26.58%)	💔
identity_protection	6329.11	2666.67	-3662.44 (-57.87%)	💔
platformlogs	6134.97	3610.11	-2524.86 (-41.16%)	💔

To see the full report comment with /test benchmark fullreport

[elasticmachine]

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• Commit: c0f2398

History

• 💔 Build #32896 failed 049dea7
• 💔 Build #32893 failed e968c40