Update dependency org.openrewrite.maven:rewrite-maven-plugin to v6.21.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
org.openrewrite.maven:rewrite-maven-plugin (source)	6.19.0 -> 6.21.0

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Release Notes

openrewrite/rewrite-maven-plugin (org.openrewrite.maven:rewrite-maven-plugin)

v6.21.0: 6.21.0

Compare Source

What's Changed

• Verify support for multiple main source folders by @​timtebeek in #​1031

Full Changelog: openrewrite/rewrite-maven-plugin@v6.20.1...v6.21.0

v6.20.1: 6.20.1

Compare Source

Full Changelog: openrewrite/rewrite-maven-plugin@v6.20.0...v6.20.1

v6.20.0: 6.20.0

Compare Source

What's Changed

• chore(ci): bump org.owasp:dependency-check-maven from 12.1.5 to 12.1.6 by @​dependabot[bot] in #​1046
• chore(ci): bump org.apache.maven.plugins:maven-compiler-plugin from 3.14.0 to 3.14.1 by @​dependabot[bot] in #​1045
• chore(ci): bump org.assertj:assertj-bom from 3.27.5 to 3.27.6 by @​dependabot[bot] in #​1044
• chore(ci): bump org.apache.maven.plugins:maven-enforcer-plugin from 3.6.1 to 3.6.2 by @​dependabot[bot] in #​1047
• chore(ci): bump org.ow2.asm:asm from 9.8 to 9.9 by @​dependabot[bot] in #​1049
• Improve handling of source file parsing by @​shanman190 in #​1050

Full Changelog: openrewrite/rewrite-maven-plugin@v6.19.0...v6.20.0

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