Add rMATS-long v2.1.0 image

[byee4]

Summary

• Adds images/rmats-long/v2.1.0/Dockerfile for rMATS-long v2.1.0.
• Follows the upstream Dockerfile (debian:trixie + ./install), with two changes: it pins the release tag and uses Miniforge (conda-forge only), so no channel ToS prompt is needed during a non-interactive build.
• Adds a CHANGELOG entry.

Verification

• The publish workflow succeeded on the branch push (run 35223619846) and published ghcr.io/yeolab/rmats-long:v2.1.0 (sha256:742ab34ce8d727c9465a1b6789f88195dbaf57b1424d1b09d5cf9375cd428b6c).
• Pulled with Singularity on TSCC. rmats-long rmats_long.py --help, snakemake 8.0.1 and samtools 1.22.1 all run.
• A dry run of the upstream Snakefile inside the SIF resolves the full workflow (29 jobs).

🤖 Generated with Claude Code