fix(deps): pin dependencies (#108)

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Iacopo Ciao <iacopociao1992@gmail.com>

package.json

@@ -42,8 +42,8 @@
     "@angular/platform-browser": "11.2.8",
     "@angular/platform-browser-dynamic": "11.2.8",
     "@angular/router": "11.2.8",
-    "@types/lodash": "^4.14.168",
-    "lodash": "^4.17.21",
+    "@types/lodash": "4.14.168",
+    "lodash": "4.17.21",
     "rxjs": "6.6.7",
     "tslib": "2.1.0",
     "zone.js": "0.11.4"
@@ -55,7 +55,7 @@
     "@types/jasmine": "3.6.9",
     "@types/node": "12.20.6",
     "codelyzer": "6.0.1",
-    "cz-conventional-changelog": "^3.3.0",
+    "cz-conventional-changelog": "3.3.0",
     "jasmine-core": "3.7.1",
     "jasmine-spec-reporter": "6.0.0",
     "karma": "6.3.1",