Bump rust from 1.88.0-alpine3.22 to 1.89.0-alpine3.22 in /.github/docker (#1952)

Bumps rust from 1.88.0-alpine3.22 to 1.89.0-alpine3.22.


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Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/docker/Dockerfile.rust

@@ -1,3 +1,3 @@
-FROM rust:1.88.0-alpine3.22
+FROM rust:1.89.0-alpine3.22
 
 CMD echo this is a dummy file used to automate dependency upgrades for plugins