housekeeping: npm audit resolutions (via #5457)

* add `security-audit` script

* npm audit fix

* remove nyc

* nightwatch@1

this breaks the test suite, but it appears to have already regressed. leaving it for another day, TODO: open a backlog ticket

* add `security-audit` script

* disable mocha exclusivity

* update package-lock.json

* cypress@3.4.0

* `npm audit fix`

* @release-it/conventional-changelog@1.1.0

* release-it@12

test/e2e-selenium/scenarios/schemeContainer.js

@@ -10,7 +10,6 @@ describe("Render scheme", function () {
         schemeContainer = mainPage.section.schemeContainer
 
         client.waitForElementVisible(".download-url-input:not([disabled])", 5000)
-        .pause(5000)
         .clearValue(".download-url-input")
         .setValue(".download-url-input", "http://localhost:3230/test-specs/petstore.json")
         .click("button.download-url-button")
@@ -49,4 +48,4 @@ describe("Render scheme", function () {
 
         client.end()
     })
-})
+})