fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-LODASH-1018905
- https://snyk.io/vuln/SNYK-JS-LODASH-1040724

package-lock.json

@@ -1983,11 +1983,6 @@
       "resolved": "https://registry.npmjs.org/bootstrap-sass/-/bootstrap-sass-3.4.1.tgz",
       "integrity": "sha512-p5rxsK/IyEDQm2CwiHxxUi0MZZtvVFbhWmyMOt4lLkA4bujDA1TGoKT0i1FKIWiugAdP+kK8T5KMDFIKQCLYIA=="
     },
-    "bootstrap3": {
-      "version": "npm:bootstrap@3.4.1",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-3.4.1.tgz",
-      "integrity": "sha512-yN5oZVmRCwe5aKwzRj6736nSmKDX7pLYwsXiCj/EYmo16hODaBiT4En5btW/jhBF/seV+XMx3aYwukYC3A49DA=="
-    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -5817,9 +5812,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.20",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
-      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash.memoize": {
       "version": "4.1.2",

package.json

@@ -33,7 +33,7 @@
     "leaflet-providers": "1.0.*",
     "leaflet-rotatedmarker": "^0.2.0",
     "leaflet.geodesic": "^2.5.2",
-    "lodash": ">=4.17.19",
+    "lodash": ">=4.17.21",
     "marked": "^1.2.2",
     "minimist": "^1.2.2",
     "moment": "^2.29.1",