RDI 1.18.1 release notes

[ZdravkoDonev-redis]

Summary

• add public release notes for Redis Data Integration 1.18.1
• document the Debezium 3.5.0 upgrade from the RDI changelog

Validation

• verified release notes do not include Jira ticket IDs, PR IDs, commit IDs, or branch IDs

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Note

Low Risk
Low risk documentation-only change; it updates a site config version string and adds a new release-notes page without affecting runtime logic.

Overview
Updates site config to set rdi_current_version from 1.18.0 to 1.18.1.

Adds a new rdi-1-18-1.md release-notes page documenting the 1.18.1 improvements, primarily the default upgrade to Debezium 3.5.0 (including updated collector image, Oracle connector compatibility updates, and Microsoft Entra ID auth support).

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[github-actions]

Staging links:
https://redis.io/docs/staging/rdi-1.18.1-release-notes/integrate/redis-data-integration/release-notes/rdi-1-18-1/

[jit-ci]

🛡️ Jit Security Scan Results

✅ No security findings were detected in this PR

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^{Security scan by Jit}

[andy-stark-redis]

I added a commit to update the version number in the config file, but otherwise LGTM.

[stoyanr]

LGTM