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/static/test-specs/features/allow-empty-value.openapi.yaml

@@ -0,0 +1,64 @@
+openapi: "3.0.0"
+
+paths:
+  /regularParams:
+    get:
+      parameters: 
+      - name: int
+        in: query
+        schema:
+          type: integer
+      - name: str
+        in: query
+        schema:
+          type: string
+      - name: num
+        in: query
+        schema:
+          type: number
+      - name: bool
+        in: query
+        schema:
+          type: boolean
+      - name: arr
+        in: query
+        schema:
+          type: array
+          items:
+            type: string
+      responses:
+        200:
+          description: ok
+  /emptyValueParams:
+    get:
+      parameters: 
+      - name: int
+        in: query
+        schema:
+          type: integer
+        allowEmptyValue: true 
+      - name: str
+        in: query
+        schema:
+          type: string
+        allowEmptyValue: true 
+      - name: num
+        in: query
+        schema:
+          type: number
+        allowEmptyValue: true 
+      - name: bool
+        in: query
+        schema:
+          type: boolean
+        allowEmptyValue: true 
+      - name: arr
+        in: query
+        schema:
+          type: array
+          items:
+            type: string
+        allowEmptyValue: true
+      responses:
+        200:
+          description: ok