confluence2md v0.4.1

Changelog

• dbbe097 Add coverage badge to README
• aec7378 Add fuzz tests for converter package and fix badge cache
• 0ec9f76 Fix "text file busy" race condition in CI
• 863454a Fix Codecov upload: add token parameter
• beaa089 Fix balanceDetailsTags edge case found by fuzzing
• 3d5d600 Handle concurrent pandoc extraction from multiple test binaries
• 8d19613 Improve test coverage from ~50% to 85%
• 5fe014a chore: switch to Apache 2.0 license with enterprise offering
• dad82bf fix: Add cache-busting param to Codecov badge URL