Consolidate security-check into checks-backend (#21882)

Also, run it via exact version instead of relying on global binary.

.drone.yml

@@ -39,16 +39,6 @@ steps:
       - make lint-frontend
     depends_on: [deps-frontend]
 
-  - name: security-check
-    image: golang:1.19
-    pull: always
-    commands:
-      - make security-check
-    depends_on: [deps-backend]
-    volumes:
-      - name: deps
-        path: /go
-
   - name: lint-backend
     image: gitea/test_env:linux-amd64  # https://gitea.com/gitea/test-env
     pull: always

Makefile

@@ -333,7 +333,7 @@ checks: checks-frontend checks-backend
 checks-frontend: lockfile-check svg-check
 
 .PHONY: checks-backend
-checks-backend: tidy-check swagger-check fmt-check misspell-check swagger-validate
+checks-backend: tidy-check swagger-check fmt-check misspell-check swagger-validate security-check
 
 .PHONY: lint
 lint: lint-frontend lint-backend
@@ -745,7 +745,7 @@ generate-go: $(TAGS_PREREQ)
 
 .PHONY: security-check
 security-check:
-	govulncheck -v ./...
+	go run $(GOVULNCHECK_PACKAGE) -v ./...
 
 $(EXECUTABLE): $(GO_SOURCES) $(TAGS_PREREQ)
 	CGO_CFLAGS="$(CGO_CFLAGS)" $(GO) build $(GOFLAGS) $(EXTRA_GOFLAGS) -tags '$(TAGS)' -ldflags '-s -w $(LDFLAGS)' -o $@