Update README examples with 2.9.0

README.md

@@ -279,18 +279,18 @@ Where possible, a pre-compiled native gem will be provided for the following pla
 SHA256 checksums are included in the [release notes](https://github.com/mudge/re2/releases) for each version and can be checked with `sha256sum`, e.g.
 
 ```console
-$ gem fetch re2 -v 2.8.0
-Fetching re2-2.8.0-arm64-darwin.gem
-Downloaded re2-2.8.0-arm64-darwin
-$ sha256sum re2-2.8.0-arm64-darwin.gem
-962bad5c8de0757b059eff8922c3de31830a6710c418a83f2eab2b8253b8a0bf  re2-2.8.0-arm64-darwin.gem
+$ gem fetch re2 -v 2.9.0
+Fetching re2-2.9.0-arm64-darwin.gem
+Downloaded re2-2.9.0-arm64-darwin
+$ sha256sum re2-2.9.0-arm64-darwin.gem
+91dcc103257d7abb0ee832d673267cee48be7194883fed502b1407d2779c3499  re2-2.9.0-arm64-darwin.gem
 ```
 
 [GPG](https://www.gnupg.org/) signatures are attached to each release (the assets ending in `.sig`) and can be verified if you import [our signing key `0x39AC3530070E0F75`](https://mudge.name/39AC3530070E0F75.asc) (or fetch it from a public keyserver, e.g. `gpg --keyserver keyserver.ubuntu.com --recv-key 0x39AC3530070E0F75`):
 
 ```console
-$ gpg --verify re2-2.8.0-arm64-darwin.gem.sig re2-2.8.0-arm64-darwin.gem
-gpg: Signature made Wed 31 Jan 15:02:06 2024 GMT
+$ gpg --verify re2-2.9.0-arm64-darwin.gem.sig re2-2.9.0-arm64-darwin.gem
+gpg: Signature made Thu 29 Feb 14:00:55 2024 GMT
 gpg:                using RSA key 702609D9C790F45B577D7BEC39AC3530070E0F75
 gpg: Good signature from "Paul Mucur <[email protected]>" [unknown]
 gpg:                 aka "Paul Mucur <[email protected]>" [unknown]