Add Arm64 builds to CI

[dagardner-nv]

Description

• Add Arm64 build and test stages to CI
• Refactor Dockerfile as a multi-arch container
• Add Arm64 (aarch64) to dependencies.yaml matrix
• Skip test TestPipeline.EngineFactories on Arm64, until [BUG]: TestPipeline.EngineFactories fails on arm64 #525 is resolved.

Related to nv-morpheus/utilities#90

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.18%. Comparing base (7961e5a) to head (65c5b0b).

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-25.02     #524      +/-   ##
================================================
+ Coverage         70.72%   74.18%   +3.45%     
================================================
  Files               404      407       +3     
  Lines             14393    15051     +658     
  Branches           1148     1191      +43     
================================================
+ Hits              10180    11165     +985     
+ Misses             4213     3886     -327     

Flag	Coverage Δ
cpp	70.72% <ø> (ø)
py	44.24% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
cpp/mrc/src/tests/test_pipeline.cpp	94.35% <ø> (ø)

... and 128 files with indirect coverage changes

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