v4.1.1

Changes since master

• ci: harden release (fmt/generate checks), build on develop, stamp version via ldflags, goreleaser v2 config (9bb7627)
• ci: stop publishing Docker images on version tags (GitHub release only) (1788900)
• ci: add develop-only release workflow and bump version to 4.1.1 (7ec5985)
• feat(antlr): add ANTLR grammar (.g4) language support (3b37a38)
• fix(bosque): correct complexity keywords against the real parser grammar (0872a5b)
• fix(prolog): replace fabricated complexity keywords with real operators (91e53ef)
• fix(languages): stop double-counting switch/case complexity (8d2a3f3)
• fix(flix): correct complexity keywords and ship a compiling example (10a831c)
• feat: add Flix keywords and heuristics to language database (b3f4100)
• feat: add Flix language support with example program and configuration (a6bdeb2)