chore(deps): bump node-fetch from 2.6.0 to 2.6.1 in /rpc_agent

Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.6.0 to 2.6.1.
- [Release notes](https://github.com/bitinn/node-fetch/releases)
- [Changelog](https://github.com/node-fetch/node-fetch/blob/master/docs/CHANGELOG.md)
- [Commits](node-fetch/node-fetch@v2.6.0...v2.6.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

rpc_agent/package.json

@@ -11,7 +11,7 @@
     "@jolocom/sdk-password-store-filesystem": "^0.1.0",
     "@jolocom/sdk-storage-typeorm": "^2.0.9",
     "jolocom-lib": "^5.1.0-rc5",
-    "node-fetch": "^2.6.0",
+    "node-fetch": "^2.6.1",
     "sqlite3": "^5.0.0",
     "ts-node": "^9.0.0",
     "typeorm": "^0.2.24",

rpc_agent/yarn.lock

@@ -1638,10 +1638,10 @@ node-addon-api@2.0.0:
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-2.0.0.tgz#f9afb8d777a91525244b01775ea0ddbe1125483b"
   integrity sha512-ASCL5U13as7HhOExbT6OlWJJUV/lLzL2voOSP1UVehpRD8FbSrSDjfScK/KwAvVTI5AS6r4VwbOMlIqtvRidnA==
 
-node-fetch@^2.3.0, node-fetch@^2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
-  integrity sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==
+node-fetch@^2.3.0, node-fetch@^2.6.0, node-fetch@^2.6.1:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
+  integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
 
 node-forge@^0.9.1:
   version "0.9.1"