Update rust:slim Docker digest to 68142f4 (#74)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Dockerfile

@@ -1,13 +1,13 @@
 # Copyright 2024 Dotanuki Labs
 # SPDX-License-Identifier: MIT
 
-FROM rust:slim@sha256:2808c258e14c25a1277d7ba6e653093ef00ba088dc73d99402a900e8cc218d5c AS builder
+FROM rust:slim@sha256:68142f487f68f281bdc7a1e751ec5011e8c000550e60affa89b1e4a5ad80e06b AS builder
 
 RUN apt-get update && apt-get install -qy pkg-config libssl-dev
 COPY ./cargo-plugins.sh /bin/cargo-plugins.sh
 RUN cargo-plugins.sh
 
-FROM rust:slim@sha256:2808c258e14c25a1277d7ba6e653093ef00ba088dc73d99402a900e8cc218d5c
+FROM rust:slim@sha256:68142f487f68f281bdc7a1e751ec5011e8c000550e60affa89b1e4a5ad80e06b
 COPY --from=builder /usr/local/cargo/ /usr/local/cargo/
 COPY ./callinectes.sh /bin/callinectes