fix(lang): remove gosec (redundant with golangci-lint)

gosec is not in Mason registry and golangci-lint already includes
gosec as a default linter, making the standalone entry redundant.

Author: charliie-dev

lua/core/settings.lua

@@ -143,7 +143,6 @@ settings["linter_deps"] = {
 	"oxlint",
 	-- "rumdl", -- markdownlint Rust rewrite; waiting for rule coverage to mature
 	"golangci-lint",
-	"gosec",
 	"selene",
 	"shellcheck",
 	"systemdlint",

lua/modules/configs/completion/nvim-lint.lua

@@ -3,7 +3,7 @@ return function()
 
 	lint.linters_by_ft = {
 		dockerfile = { "hadolint" },
-		go = { "golangcilint", "gosec" },
+		go = { "golangcilint" },
 		lua = { "selene" },
 		markdown = { "markdownlint-cli2" },
 		javascript = { "oxlint" },