Update rust Docker tag to v1.88.0 (#715)

renovate[bot] · web-flow · commit d3727de76780 · 2025-07-24T03:56:19.000+03:00
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/federation/subgraphs/Dockerfile.rust b/federation/subgraphs/Dockerfile.rust
@@ -1,4 +1,4 @@
-FROM rust:1.87.0 as builder
+FROM rust:1.88.0 as builder
 
 WORKDIR /usr/src/subgraph
 COPY Cargo.toml Cargo.lock ./
