#93 : failures on parsing timestamp with timezone

[MatloaItumeleng]

Release notes:

• Bugfix parsing timestamp with timezone addressed by removing the number of single-quote characters that appear before each section's start in the pattern

closes #93

[github-actions]

JaCoCo code coverage report - scala 2.12.20

Metric (instruction)	Coverage	Threshold	Status
Overall	81.65%	80.0%	✅
Changed Files	84.72%	80.0%	✅

Report	Coverage (O/Ch)	Threshold (O/Ch)	Status (O/Ch)
spark-data-standardization Jacoco Report - scala:2.12.20	81.65% / 84.72%	80.0% / 80.0%	✅/✅

File Path	Coverage	Threshold	Status
DateTimePattern.scala	84.72%	0.0%	✅

[Copilot]

Pull request overview

This PR fixes timestamp parsing for patterns that include quoted literals (e.g., ISO-8601 yyyy-MM-dd'T'HH:mm:ss.SSSXXX) by correcting how second-fraction section indexes are mapped from the pattern to the input value string, and adds regression tests for the reported failure.

Changes:

• Update DateTimePattern second-fraction scanning to compute patternWithoutSecondFractions from pattern indexes while adjusting extracted/removal section indexes for value strings with quoted literals.
• Add a regression test covering parsing of a timezone + milliseconds timestamp with a quoted literal ('T') in the pattern.
• Add a DateTimePattern unit test validating fraction detection/stripping for the same quoted-literal + timezone pattern.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/main/scala/za/co/absa/standardization/time/DateTimePattern.scala	Adjusts second-fraction section index handling for patterns containing quoted literals; recomputes patternWithoutSecondFractions from pattern-based sections.
src/test/scala/za/co/absa/standardization/types/parsers/DateTimeParserSuite.scala	Adds regression coverage for parsing ISO-like timestamps with timezone + milliseconds and quoted literals in the pattern.
src/test/scala/za/co/absa/standardization/time/DateTimePatternSuite.scala	Adds a unit test for second-fraction detection/stripping in quoted-literal + timezone patterns.

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[ABLL526]

LGTM, although the Co-Pilot made some valid suggestions that need addressing IMO.

[salamonpavel]

LGTM (read the code), do address Copilot's suggestions otherwise ok.

[ABLL526]

LGTM, Those comments were addressed well. Good work

[dk1844]

I am generally happy with it, please just address the comments