Dockerfile: drop redundant install_pyrdl.sh step

[calvinp0]

Summary

• py-rdl is now resolved via environment.yml (danagroup::py-rdl), so the explicit bash ./devtools/install_pyrdl.sh invocation during the arc_env build stage is redundant.
• Removes the chained call from line 63 of the Dockerfile while preserving make compile and the bash -euxo pipefail safety wrapper.

Test plan

• Docker image builds successfully (docker build .)
• arc_env contains a working py_rdl import after build

[Copilot]

Pull request overview

Removes the Docker build-stage invocation of devtools/install_pyrdl.sh, relying on environment.yml (via danagroup::py-rdl) to provide py-rdl in arc_env.

Changes:

• Drop the chained bash ./devtools/install_pyrdl.sh from the arc_env build stage.
• Preserve the bash -euxo pipefail wrapper and keep make compile as the build step.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.43%. Comparing base (b521d1e) to head (5869abc).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #885      +/-   ##
==========================================
- Coverage   60.51%   60.43%   -0.08%     
==========================================
  Files         103      103              
  Lines       31165    31165              
  Branches     8126     8126              
==========================================
- Hits        18859    18835      -24     
- Misses       9947     9968      +21     
- Partials     2359     2362       +3     

Flag	Coverage Δ
functionaltests	60.43% <ø> (-0.08%)	⬇️
unittests	60.43% <ø> (-0.08%)	⬇️

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