sharksmhi/SHARK4R: v.1.1.1

CRAN compliance fixes

• All vignettes that call external APIs now use a hidden availability check followed by try()-protected execution chunks, so transient server errors (502, 503, 500) never cause vignette rebuild failures. The user-facing code shown on pkgdown remains clean and uncluttered.
• Added skip_if_offline() and skip_if_resource_unavailable() guards to previously unprotected tests for deprecated WoRMS wrappers (match_wormstaxa, update_worms_taxonomy) and the empty/NA input edge case (match_worms_taxa(c("", NA))).
• Added skip_on_cran() to deprecated WoRMS wrapper tests, since the base-URL availability check can pass while individual API endpoints return server errors.
• Added skip_if_offline() to the "wrong url fails" test in test-xylookup.R.

What's Changed

• fix: safeguard all vignettes and remaining tests against transient AP… by @anderstorstensson in https://github.com/sharksmhi/SHARK4R/pull/53

Full Changelog: https://github.com/sharksmhi/SHARK4R/compare/v.1.1.0...v.1.1.1