3.1.3

Bugfixes:

• citnames: include filter works with trailing separator ( #539, @Pennycook )
• dependency: fmt to work with all recent versions ( #471, #526, #543, @peeweep , @Moisan )
• ci: fix GitHub action runs ( #533, @mamaria-k )
• cmake: Avoid warning about DOWNLOAD_EXTRACT_TIMESTAMP ( #531, @Spongman )
• language: Add missing include for std::find ( #530, @thesamesam )