fix: functions/.snyk & functions/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with a Snyk patch:
- https://snyk.io/vuln/SNYK-JS-AXIOS-174505

functions/.snyk

@@ -0,0 +1,38 @@
+# Snyk (https://snyk.io) policy file, patches or ignores known vulnerabilities.
+version: v1.13.3
+ignore: {}
+# patches apply the minimum changes required to fix a vulnerability
+patch:
+  SNYK-JS-AXIOS-174505:
+    - firebase-admin > @google-cloud/storage > @google-cloud/common > google-auto-auth > google-auth-library > gtoken > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > gcs-resumable-upload > google-auto-auth > google-auth-library > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > @google-cloud/common > google-auto-auth > google-auth-library > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > gcs-resumable-upload > google-auto-auth > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > @google-cloud/common > google-auto-auth > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > google-gax > google-auto-auth > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > @google-cloud/common-grpc > @google-cloud/common > google-auto-auth > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > google-gax > google-auto-auth > google-auth-library > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > google-gax > google-auto-auth > google-auth-library > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > google-gax > google-auto-auth > google-auth-library > gtoken > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > gcs-resumable-upload > google-auto-auth > google-auth-library > gtoken > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > @google-cloud/common-grpc > @google-cloud/common > google-auto-auth > google-auth-library > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > gcs-resumable-upload > google-auto-auth > google-auth-library > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/storage > @google-cloud/common > google-auto-auth > google-auth-library > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > @google-cloud/common-grpc > @google-cloud/common > google-auto-auth > google-auth-library > gcp-metadata > axios:
+        patched: '2019-05-05T23:31:24.742Z'
+    - firebase-admin > @google-cloud/firestore > @google-cloud/common-grpc > @google-cloud/common > google-auto-auth > google-auth-library > gtoken > axios:
+        patched: '2019-05-05T23:31:24.742Z'

functions/package.json

@@ -7,15 +7,19 @@
     "shell": "firebase experimental:functions:shell",
     "start": "npm run shell",
     "deploy": "firebase deploy --only functions",
-    "logs": "firebase functions:log"
+    "logs": "firebase functions:log",
+    "snyk-protect": "snyk protect",
+    "prepare": "npm run snyk-protect"
   },
   "dependencies": {
     "firebase-admin": "~5.8.1",
-    "firebase-functions": "^0.8.1"
+    "firebase-functions": "^0.8.1",
+    "snyk": "^1.161.1"
   },
   "devDependencies": {
     "eslint": "^4.12.0",
     "eslint-plugin-promise": "^3.6.0"
   },
-  "private": true
+  "private": true,
+  "snyk": true
 }