feat(lang): enable a few gopls analyzers which are disabled by default

modules/languages/siren-golang.el

@@ -72,6 +72,10 @@
   :custom
   (lsp-go-use-placeholders t)
   (lsp-go-link-target "pkg.go.dev")
+  (lsp-go-analyses '((nilness . t)
+                     (shadow . t)
+                     (unusedparams . t)
+                     (unusedwrite . t)))
 
   :config
   (lsp-register-custom-settings