Bump ecstatic from 2.2.2 to 4.1.4 in /web

Bumps [ecstatic](https://github.com/jfhbrook/node-ecstatic) from 2.2.2 to 4.1.4.
- [Release notes](https://github.com/jfhbrook/node-ecstatic/releases)
- [Changelog](https://github.com/jfhbrook/node-ecstatic/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jfhbrook/node-ecstatic/compare/2.2.2...4.1.4)

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

web/package-lock.json

@@ -1322,6 +1322,11 @@
         "supports-color": "2.0.0"
       }
     },
+    "charset": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/charset/-/charset-1.0.1.tgz",
+      "integrity": "sha512-6dVyOOYjpfFcL1Y4qChrAoQLRHvj2ziyhcm0QJlhOcAhykL/k1kTUPbeo+87MNRTRdk2OIIsIXbuF3x2wi5EXg=="
+    },
     "chokidar": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-1.7.0.tgz",
@@ -1859,16 +1864,35 @@
       }
     },
     "ecstatic": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/ecstatic/-/ecstatic-2.2.2.tgz",
-      "integrity": "sha512-F1g29y3I+abOS+M0AiK2O9R96AJ49Bc3kH696HtqnN+CL3YhpUnSzHNoUBQL03qDsN9Lr1XeKIxTqEH3BtiBgg==",
+      "version": "4.1.4",
+      "resolved": "https://registry.npmjs.org/ecstatic/-/ecstatic-4.1.4.tgz",
+      "integrity": "sha512-8E4ZLK4uRuB9pwywGpy/B9vcz4gCp6IY7u4cMbeCINr/fjb1v+0wf0Ae2XlfSnG8xZYnE4uaJBjFkYI0bqcIdw==",
       "requires": {
-        "he": "1.1.1",
-        "mime": ">=1.4.1",
-        "minimist": "1.2.0",
-        "url-join": "2.0.2"
+        "charset": "^1.0.1",
+        "he": "^1.1.1",
+        "mime": "^2.4.1",
+        "minimist": "^1.1.0",
+        "on-finished": "^2.3.0",
+        "url-join": "^4.0.0"
+      },
+      "dependencies": {
+        "mime": {
+          "version": "2.4.6",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.6.tgz",
+          "integrity": "sha512-RZKhC3EmpBchfTGBVb8fb+RL2cWyw/32lshnsETttkBAyAUXSGHxbEJWWRXc751DrIxG1q04b8QwMbAwkRPpUA=="
+        },
+        "url-join": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/url-join/-/url-join-4.0.1.tgz",
+          "integrity": "sha512-jk1+QP6ZJqyOiuEI9AEWQfju/nB2Pw466kbA0LEZljHwKeMgd9WrAEgEGxjPDD2+TNbbb37rTyhEfrCXfuKXnA=="
+        }
       }
     },
+    "ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
+    },
     "elliptic": {
       "version": "6.5.3",
       "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
@@ -4216,7 +4240,8 @@
     "mime": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
-      "integrity": "sha1-aeng21HUTyo7VuSLeBfX0Tfxo0M="
+      "integrity": "sha1-aeng21HUTyo7VuSLeBfX0Tfxo0M=",
+      "dev": true
     },
     "mime-db": {
       "version": "1.30.0",
@@ -4585,6 +4610,14 @@
         }
       }
     },
+    "on-finished": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
+      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
+      "requires": {
+        "ee-first": "1.1.1"
+      }
+    },
     "once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -5888,11 +5921,6 @@
         }
       }
     },
-    "url-join": {
-      "version": "2.0.5",
-      "resolved": "https://registry.npmjs.org/url-join/-/url-join-2.0.5.tgz",
-      "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg="
-    },
     "user-home": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/user-home/-/user-home-1.1.1.tgz",

web/package.json

@@ -13,7 +13,7 @@
     "clean": "rm static/build/*"
   },
   "dependencies": {
-    "ecstatic": "^2.2.2",
+    "ecstatic": "^4.1.4",
     "gulp-cssimport": "^6.0.0",
     "minimist": "^1.2.3",
     "routes": "^2.1.0",