Enterprise v1.5.2 base

What's Changed

• enterprise release and helm changelogs by @akshaydeo in #4789
• feat: sonnet 5 compatibility by @TejasGhatte in #4815
• fix: gemini aspect ratio by @TejasGhatte in #4798
• fix: custom provider key form bedrock by @TejasGhatte in #4799
• fix: fixes Bedrock error type extraction by @roroghost17 in #4808
• fixes plan cache issue with migration by @akshaydeo in #4819
• fix: unify request-time reset side effects by @danpiths in #4820
• 1.6.2 chagelog by @akshaydeo in #4818

Full Changelog: ent-v1.5.1-base...ent-v1.5.2-base