Bump angular-tree-component from 8.5.2 to 8.5.6 in /web

Bumps [angular-tree-component](https://github.com/500tech/angular-tree-component) from 8.5.2 to 8.5.6.
- [Release notes](https://github.com/500tech/angular-tree-component/releases)
- [Changelog](https://github.com/CirclonGroup/angular-tree-component/blob/master/CHANGELOG.md)
- [Commits](https://github.com/500tech/angular-tree-component/compare/8.5.2...8.5.6)

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

web/package-lock.json

@@ -4671,14 +4671,12 @@
       }
     },
     "angular-tree-component": {
-      "version": "8.5.2",
-      "resolved": "https://registry.npmjs.org/angular-tree-component/-/angular-tree-component-8.5.2.tgz",
-      "integrity": "sha512-3NwMB+vLq1+WHz2UVgsZA73E1LmIIWJlrrasCKXbLJ3S7NmY9O/wKcolji3Vp2W//5KQ33RXu1jiPXCOQdRzVA==",
+      "version": "8.5.6",
+      "resolved": "https://registry.npmjs.org/angular-tree-component/-/angular-tree-component-8.5.6.tgz",
+      "integrity": "sha512-cxNem6872diZz9kIGqrjSJbKt0P3WSq9wTqZIeVJ8zsddI4Y6ShAVZlZNXUMRyJq246c9pJ6JJEAOzKVLk9xgA==",
       "requires": {
         "lodash": "^4.17.11",
-        "mobx": "^5.14.2",
-        "mobx-angular": "3.0.3",
-        "opencollective-postinstall": "^2.0.2"
+        "mobx": "^4.15.1"
       }
     },
     "ansi-colors": {
@@ -14585,14 +14583,9 @@
       }
     },
     "mobx": {
-      "version": "5.15.4",
-      "resolved": "https://registry.npmjs.org/mobx/-/mobx-5.15.4.tgz",
-      "integrity": "sha512-xRFJxSU2Im3nrGCdjSuOTFmxVDGeqOHL+TyADCGbT0k4HHqGmx5u2yaHNryvoORpI4DfbzjJ5jPmuv+d7sioFw=="
-    },
-    "mobx-angular": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/mobx-angular/-/mobx-angular-3.0.3.tgz",
-      "integrity": "sha512-mZuuose70V+Sd0hMWDElpRe3mA6GhYjSQN3mHzqk2XWXRJ+eWQa/f3Lqhw+Me/Xd2etWsGR1hnRa1BfQ2ZDtpw=="
+      "version": "4.15.7",
+      "resolved": "https://registry.npmjs.org/mobx/-/mobx-4.15.7.tgz",
+      "integrity": "sha512-X4uQvuf2zYKHVO5kRT5Utmr+J9fDnRgxWWnSqJ4oiccPTQU38YG+/O3nPmOhUy4jeHexl7XJJpWDBgEnEfp+8w=="
     },
     "mocha": {
       "version": "8.1.1",

web/package.json

@@ -31,7 +31,7 @@
     "@ngxs/devtools-plugin": "3.6.2",
     "@ngxs/store": "3.6.2",
     "angular-svg-icon": "7.2.1",
-    "angular-tree-component": "8.5.2",
+    "angular-tree-component": "8.5.6",
     "bootstrap": "4.4.1",
     "core-js": "3.8.2",
     "file-saver": "1.3.3",