Update MTK Analyzer version to 2.1.0

[szolo]

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AI Language Review

• In the section "Requirements & Preparations," the plugin version was updated from 2.0.23 to 2.1.0. This change looks appropriate if the new version offers improvements or critical bug fixes. Ensure that version 2.1.0 is stable and compatible with the other specified requirements.
• In the section "Older Java & Maven Versions," the Maven wrapper example was updated from -Dmaven=3.9.3 to -Dmaven=3.9.5. Ensure that you consistently refer to the latest recommended version throughout the document, especially where Maven versions are specified.
• In the section "Determining a Pattern," the sentence "The most common pattern for Vaadin applications is com.vaadin" and subsequent explanation retain clarity. Ensure this change does not create a discrepancy with other documentation that might reference alternative patterns.

No issues were found with the changes made.