Add Renovating Rego blog (#1509)

Signed-off-by: Anders Eknert <anders@styra.com>

Author: anderseknert

README.md

@@ -836,6 +836,7 @@ See the [Editor Support](/docs/editor-support.md) page for information about Reg
   by Anders Eknert ([@anderseknert](https://github.com/anderseknert))
 - [Scaling Open Source Community by Getting Closer to Users](https://thenewstack.io/scaling-open-source-community-by-getting-closer-to-users/)
   by Charlie Egan ([@charlieegan3](https://github.com/charlieegan3))
+- [Renovating Rego](https://www.styra.com/blog/renovating-rego/) by Anders Eknert ([@anderseknert](https://github.com/anderseknert))
 - [Linting Rego with... Rego!](https://www.styra.com/blog/linting-rego-with-rego/) by Anders Eknert ([@anderseknert](https://github.com/anderseknert))
 - [Regal: Rego(OPA)用リンタの導入手順](https://zenn.dev/erueru_tech/articles/6cfb886d92858a) by Jun Fujita ([@erueru-tech](https://github.com/erueru-tech))
 - [Regal を使って Rego を Lint する](https://tech.dentsusoken.com/entry/2024/12/05/Regal_%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6_Rego_%E3%82%92_Lint_%E3%81%99%E3%82%8B)