[TT-9919] add docs for configuring cert-manager and webhooks

[olamilekan000]

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Description

change documents how webhooks and cert-manger can be configured. 

https://tyktech.atlassian.net/browse/TT-9919

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PR Type

Documentation

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Description

• Added Helm chart configuration docs for webhooks.

• Detailed TLS settings using Cert-Manager.

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Changes walkthrough 📝

	Relevant files
Documentation	operator.md Add webhooks configuration documentation in Helm Operator tyk-docs/content/api-management/automations/operator.md Inserted new "Webhooks" section in the operator file. Provided Helm chart values snippet for enabling webhooks. Documented TLS configuration with Cert-Manager. +20/-0

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⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

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⚡ Recommended focus areas for review Documentation Formatting Verify that the added code block for webhook configuration is rendered properly and consistently in the documentation. ##### Webhooks Webhooks can now be configured using the Helm chart by specifying the necessary settings in the values.yaml file of the operator. webhooks: enabled: true port: 9443 annotations: {} tls: useCertManager: true secretName: webhook-server-cert certificatesMountPath: "/tmp/k8s-webhook-server/serving-certs" Configuration Flexibility Consider making the cert-manager configuration more flexible instead of hardcoding tls.useCertManager to true, to align with the branch purpose. useCertManager: true

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Category	Suggestion	Impact
General	add yaml language tag Include the YAML language identifier in the code block for better syntax highlighting. tyk-docs/content/api-management/automations/operator.md [5073-5074] -``` +```yaml webhooks: Suggestion importance[1-10]: 4 __ Why: The suggestion improves readability by specifying the YAML language for syntax highlighting, which is a minor but useful enhancement.	Low

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[caroltyk]

@olamilekan000 we should update Operator Installation notes too.

[sharadregoti]

@caroltyk @olamilekan000 As per the Jira ticket, I think we need more description on webhooks and cert manager dependency.

1. There will be changes in the installation section.
2. Impact on previous version when upgrading.