chore(deps): update ubuntu:latest docker digest to 8a37d68 (#54)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| ubuntu | final | digest | `2e863c4` -> `8a37d68` |

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Co-authored-by: repo-jeeves[bot] <106431701+repo-jeeves[bot]@users.noreply.github.com>

Dockerfile

@@ -17,7 +17,7 @@ COPY . .
 RUN cargo build --release --target x86_64-unknown-linux-musl
 RUN strip /build/target/x86_64-unknown-linux-musl/release/rust-arch
 
-FROM ubuntu:latest@sha256:2e863c44b718727c860746568e1d54afd13b2fa71b160f5cd9058fc436217b30 AS ubuntu
+FROM ubuntu:latest@sha256:8a37d68f4f73ebf3d4efafbcf66379bf3728902a8038616808f04e34a9ab63ee AS ubuntu
 RUN groupadd --gid 8779 rust-arch && useradd -g 8779 -M -u 8779 -s /usr/sbin/nologin rust-arch
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates
 RUN update-ca-certificates