Bump @fortawesome/fontawesome-free from 5.15.4 to 6.4.0

[dependabot[bot]]

Bumps @fortawesome/fontawesome-free from 5.15.4 to 6.4.0.

Release notes

Sourced from @​fortawesome/fontawesome-free's releases.

Release 6.4.0

Change log available at https://fontawesome.com/docs/changelog/

Release 6.3.0

Change log available at https://fontawesome.com/docs/changelog/

Release 6.2.1

Change log available at https://fontawesome.com/docs/changelog/

Release 6.2.0

Change log available at https://fontawesome.com/docs/changelog/

Release 6.1.2

Change log available at https://fontawesome.com/docs/changelog/

Release 6.1.1

Change log available at https://fontawesome.com/docs/changelog/

Release 6.1.0

Change log available at https://fontawesome.com/docs/changelog/

Release 6.0.0

Change log available at https://fontawesome.com/docs/changelog/

Commits

• 0698449 Release 6.4.0 (#19631)
• d02961b Release 6.3.0 (#19539)
• adb2273 Typo fixed (#19467)
• 96cafbd Release 6.2.1 (#19431)
• d3a7818 Release 6.2.0 (#19296)
• 701d64a Release 6.1.2 (#19210)
• b452a2c Add Issue Forms (#19011)
• 2360bd5 Update README.md (#18907)
• 28e297f Release 6.1.1 (#18843)
• 307f2c1 Release 6.1.0 (#18820)
• Additional commits viewable in compare view

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