Bump core-js from 2.6.12 to 3.9.1

Bumps [core-js](https://github.com/zloirock/core-js/tree/HEAD/packages/core-js) from 2.6.12 to 3.9.1.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/commits/v3.9.1/packages/core-js)

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

package.json

@@ -13,52 +13,52 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^7.2.15",
+    "@angular/animations": "^8.2.14",
     "@angular/cdk": "^7.3.7",
-    "@angular/common": "^7.2.15",
-    "@angular/compiler": "^7.2.15",
-    "@angular/core": "^7.2.15",
-    "@angular/forms": "^7.2.15",
+    "@angular/common": "^8.2.14",
+    "@angular/compiler": "^8.2.14",
+    "@angular/core": "^8.2.14",
+    "@angular/forms": "^8.2.14",
     "@angular/material": "^7.3.7",
-    "@angular/platform-browser": "^7.2.15",
-    "@angular/platform-browser-dynamic": "^7.2.15",
-    "@angular/router": "^7.2.15",
+    "@angular/platform-browser": "^8.2.14",
+    "@angular/platform-browser-dynamic": "^8.2.14",
+    "@angular/router": "^8.2.14",
     "@types/heatmap.js": "^2.0.36",
     "ajv": "^7.2.1",
-    "bootstrap": "^4.3.1",
-    "core-js": "^2.6.9",
+    "bootstrap": "^4.6.0",
+    "core-js": "^3.9.1",
     "heatmap.js": "^2.0.5",
-    "jquery": "^3.4.1",
-    "leaflet": "^1.5.1",
+    "jquery": "^3.6.0",
+    "leaflet": "^1.7.1",
     "leaflet-heatmap": "^1.0.0",
-    "ngx-gauge": "1.0.0-beta.10",
+    "ngx-gauge": "1.0.0-beta.13",
     "ngx-mqtt": "6.10.0",
-    "popper.js": "^1.15.0",
-    "rxjs": "~6.3.3",
-    "tslib": "^1.10.0",
-    "zone.js": "~0.8.26"
+    "popper.js": "^1.16.1",
+    "rxjs": "~6.6.6",
+    "tslib": "^1.14.1",
+    "zone.js": "~0.9.1"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.1102.5",
-    "@angular/cli": "~7.2.1",
-    "@angular/compiler-cli": "^7.2.15",
-    "@angular/language-service": "^7.2.15",
-    "@types/jasmine": "~2.8.8",
-    "@types/jasminewd2": "~2.0.3",
+    "@angular-devkit/build-angular": "~0.803.29",
+    "@angular/cli": "~8.3.29",
+    "@angular/compiler-cli": "^8.2.14",
+    "@angular/language-service": "^8.2.14",
+    "@types/jasmine": "^2.8.17",
+    "@types/jasminewd2": "^2.0.8",
     "@types/node": "~8.9.4",
-    "codecov": "^3.5.0",
-    "codelyzer": "~4.5.0",
+    "codecov": "^3.8.1",
+    "codelyzer": "^5.0.1",
     "jasmine-core": "~2.99.1",
     "jasmine-spec-reporter": "~4.2.1",
     "karma": "~3.1.1",
     "karma-chrome-launcher": "~2.2.0",
     "karma-coverage": "^1.1.2",
-    "karma-coverage-istanbul-reporter": "^2.0.6",
+    "karma-coverage-istanbul-reporter": "^2.1.1",
     "karma-jasmine": "~1.1.2",
     "karma-jasmine-html-reporter": "^0.2.2",
-    "protractor": "~5.4.0",
+    "protractor": "^5.4.4",
     "ts-node": "~7.0.0",
     "tslint": "~5.11.0",
-    "typescript": "~3.2.2"
+    "typescript": "~3.5.3"
   }
 }