fix: unify DeployStrategy empty-array errors to NoSuchElementException

[Ma77Ball]

What changes were proposed in this PR?

OneOnEach, RoundRobinDeployment, and RandomDeployment each leaked a different implementation-detail exception when next() was called on an empty available array (IndexOutOfBoundsException, ArithmeticException,
and IllegalArgumentException respectively), so callers had no single contract to handle. Each next() now guards available.isEmpty and throws NoSuchElementException("no available addresses"), the standard Scala/Java
contract for "no element to return". For OneOnEach, the post-iteration "exhausted" branch was also switched to NoSuchElementException, so both empty-init and exhausted paths agree.

Any related issues, documentation, or discussions?

Closes: #4732

How was this PR tested?

• Updated the three pinning specs in DeployStrategiesSpec (previously asserting the divergent exception types) to assert NoSuchElementException for: OneOnEach empty-init, OneOnEach exhausted-after-iteration,
  OneOnEach cursor-preserved-across-reinit, RoundRobinDeployment empty, and RandomDeployment empty.
• Ran sbt scalafmtAll no formatting changes to the modified files.
• Local sbt testOnly for the spec could not run due to a pre-existing build.sbt load error (AddMetaInfLicenseFiles not found), unrelated to this change; CI is expected to run the spec.

Was this PR authored or co-authored using generative AI tooling?

Co-authored with Claude Opus 4.7 in compliance with ASF

[Ma77Ball]

/request-review @Yicong-Huang

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 42.77%. Comparing base (5bff1b4) to head (8d0d941).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5029      +/-   ##
============================================
- Coverage     42.78%   42.77%   -0.01%     
+ Complexity     2197     2196       -1     
============================================
  Files          1045     1045              
  Lines         39985    39989       +4     
  Branches       4217     4217              
============================================
- Hits          17109    17107       -2     
- Misses        21818    21821       +3     
- Partials       1058     1061       +3     

Flag	Coverage Δ		*Carryforward flag
access-control-service	39.53% <ø> (ø)		Carriedforward from 1497806
agent-service	33.72% <ø> (ø)		Carriedforward from 1497806
amber	43.49% <100.00%> (-0.02%)	⬇️
computing-unit-managing-service	0.00% <ø> (ø)		Carriedforward from 1497806
config-service	0.00% <ø> (ø)		Carriedforward from 1497806
file-service	32.18% <ø> (ø)		Carriedforward from 1497806
frontend	34.04% <ø> (ø)		Carriedforward from 1497806
python	88.87% <ø> (-0.03%)	⬇️	Carriedforward from 1497806
workflow-compiling-service	47.72% <ø> (ø)		Carriedforward from 1497806

*This pull request uses carry forward flags. Click here to find out more.

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