v1.21.0

Formatting changes:

• Adjust indentation of text blocks (ce3cb59)

Bug fixes:

• Fix a crash with comments inside string templates (e946e82)
• Native image -version reports HEAD-SNAPSHOT instead of the correct version (#1068)
• Improve compatibility with older glibc versions (#1072)

Full Changelog: v1.20.0...v1.21.0