fix(deps): update dependency org.pageseeder.xmlwriter:pso-xmlwriter to v1.1.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
org.pageseeder.xmlwriter:pso-xmlwriter	1.0.4 → 1.1.1

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Release Notes

pageseeder/xmlwriter (org.pageseeder.xmlwriter:pso-xmlwriter)

v1.1.1

Highlights

• Security hardening (XML parsing): enabled secure processing and disallowed DOCTYPE declarations to reduce exposure to XXE-style issues.
• Bug fix: addressed a possible index-out-of-bounds error when processing Unicode surrogate pairs.
• Java 11: switch from Java 8 to 11 as minimum requirement

API / Developer-facing changes

• Added a default toXML method to XMLFormattable and aligned Javadocs for consistency.
• Added support for attributeslong across the XMLWriter interface and its implementations.
• Improved null-safety via annotations (migration toward jspecify), including @Nullable on / writeXML. writeText

Maintenance & internal improvements

• Testing: completed migration to JUnit 5 (removed junit-vintage-engine, updated tests, enabled useJUnitPlatform, improved test logging).
• Refactors / cleanup: readability and modernization pass across writers/serializers/indenters/helpers (e.g., Stack→Deque, Hashtable→Map, improved naming, modernized null handling), plus expanded/updated test coverage.
• Publishing & release tooling: migrated publishing to JReleaser, and updated configuration to reference the default branch main instead of master.
• General documentation polish (@since/@version tags, minor Javadoc updates).

Versioning

• Version bumped to 1.1.1 following prior 1.1.0-SNAPSHOT work, version 1.1.0 was never released.

Full Changelog: pageseeder/xmlwriter@v1.0.4...v1.1.1

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