Add license-check and vulnerability-check inputs

Add support for two new inputs, named `license-check` and
`vulnerability-check`, to disable the license checks or vulnerability
checks performed by this action. By default, both are enabled.

__tests__/config.test.ts

@@ -18,6 +18,8 @@ function clearInputs() {
     'ALLOW-LICENSES',
     'DENY-LICENSES',
     'ALLOW-GHSAS',
+    'LICENSE-CHECK',
+    'VULNERABILITY-CHECK',
     'CONFIG-FILE',
     'BASE-REF',
     'HEAD-REF'
@@ -181,6 +183,38 @@ test('it successfully parses GHSA allowlist', async () => {
   ])
 })
 
+test('it defaults to checking licenses', async () => {
+  const options = readConfig()
+  expect(options.license_check).toBe(true)
+})
+
+test('it parses the license-check input', async () => {
+  setInput('license-check', 'false')
+  let options = readConfig()
+  expect(options.license_check).toEqual(false)
+
+  clearInputs()
+  setInput('license-check', 'true')
+  options = readConfig()
+  expect(options.license_check).toEqual(true)
+})
+
+test('it defaults to checking vulnerabilities', async () => {
+  const options = readConfig()
+  expect(options.vulnerability_check).toBe(true)
+})
+
+test('it parses the vulnerability-check input', async () => {
+  setInput('vulnerability-check', 'false')
+  let options = readConfig()
+  expect(options.vulnerability_check).toEqual(false)
+
+  clearInputs()
+  setInput('vulnerability-check', 'true')
+  options = readConfig()
+  expect(options.vulnerability_check).toEqual(true)
+})
+
 describe('licenses that are not valid SPDX licenses', () => {
   beforeAll(() => {
     jest.spyOn(Utils, 'isSPDXValid').mockReturnValue(false)