Update several development dependencies.

package-lock.json

@@ -2521,24 +2521,10 @@
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-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.2.tgz",
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-      "dev": true,
-      "requires": {
-        "lru-cache": "^5.1.1"
-      },
-      "dependencies": {
-        "lru-cache": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz",
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-          "dev": true,
-          "requires": {
-            "yallist": "^3.0.2"
-          }
-        }
-      }
+      "version": "2.8.9",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
+      "dev": true
     },
     "http-signature": {
       "version": "1.2.0",
@@ -3064,9 +3050,9 @@
       }
     },
     "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==",
       "dev": true
     },
     "lodash.clonedeep": {
@@ -3347,6 +3333,12 @@
         }
       }
     },
+    "mkdirp": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+      "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
+      "dev": true
+    },
     "moment": {
       "version": "2.29.1",
       "resolved": "https://registry.npmjs.org/moment/-/moment-2.29.1.tgz",
@@ -4192,9 +4184,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "7.0.35",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.35.tgz",
-      "integrity": "sha512-3QT8bBJeX/S5zKTTjTCIjRF3If4avAT6kqxcASlTWEtAFCb9NH0OUxNDfgZSWdP5fJnBYCMEWkIFfWeugjzYMg==",
+      "version": "7.0.36",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.36.tgz",
+      "integrity": "sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==",
       "dev": true,
       "requires": {
         "chalk": "^2.4.2",
@@ -5251,9 +5243,9 @@
       }
     },
     "tar": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/tar/-/tar-6.1.0.tgz",
-      "integrity": "sha512-DUCttfhsnLCjwoDoFcI+B2iJgYa93vBnDUATYEeRx6sntCTdN01VnqsIuTlALXla/LWooNg0yEGeB+Y8WdFxGA==",
+      "version": "6.1.6",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-6.1.6.tgz",
+      "integrity": "sha512-oaWyu5dQbHaYcyZCTfyPpC+VmI62/OM2RTUYavTk1MDr1cwW5Boi3baeYQKiZbY2uSQJGr+iMOzb/JFxLrft+g==",
       "dev": true,
       "requires": {
         "chownr": "^2.0.0",
@@ -5264,12 +5256,6 @@
         "yallist": "^4.0.0"
       },
       "dependencies": {
-        "mkdirp": {
-          "version": "1.0.4",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
-          "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
-          "dev": true
-        },
         "yallist": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
@@ -5891,12 +5877,6 @@
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       "dev": true
     },
-    "yallist": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
-      "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
-      "dev": true
-    },
     "yargs": {
       "version": "13.3.2",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",