Update repometrics

This improves the formatting of the absolute and relative values in the
output.

Dockerfile

@@ -5,7 +5,7 @@ RUN cargo install flip-link cargo-binutils
 RUN rustup target add thumbv7em-none-eabihf thumbv8m.main-none-eabi
 RUN rustup component add llvm-tools-preview clippy rustfmt
 RUN cargo install --git https://github.com/Nitrokey/github-comment --rev ac9713f9d6d04ed03fb67d0199ebffc78ba5dcab --locked
-RUN cargo install --git https://github.com/Nitrokey/repometrics --rev 5af5b7ccba820ec9a56bd21c4b4f00fd93534689 --locked
+RUN cargo install --git https://github.com/Nitrokey/repometrics --rev 98ffa20ddded8f09c0ef252b4e93ec6a9792f9dc --locked
 RUN rustup install nightly-2024-04-01
 RUN rustup component add rust-src --toolchain nightly-2024-04-01
 WORKDIR /app