Bump cdav-library from 926a1b9 to eac2cf7

Bumps [cdav-library](https://github.com/nextcloud/cdav-library) from `926a1b9` to `eac2cf7`.
- [Release notes](https://github.com/nextcloud/cdav-library/releases)
- [Commits](926a1b9e8c...eac2cf72fe)

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

package-lock.json

@@ -3825,21 +3825,10 @@
       "dev": true
     },
     "cdav-library": {
-      "version": "github:nextcloud/cdav-library#926a1b9e8c37a1a3337cfd1bf1254df044cde809",
-      "from": "github:nextcloud/cdav-library#926a1b9e8c37a1a3337cfd1bf1254df044cde809",
+      "version": "github:nextcloud/cdav-library#eac2cf72fe0ab579247dff4254046067970bc442",
+      "from": "github:nextcloud/cdav-library#eac2cf72fe0ab579247dff4254046067970bc442",
       "requires": {
         "@babel/polyfill": "^7.6.0"
-      },
-      "dependencies": {
-        "@babel/polyfill": {
-          "version": "7.6.0",
-          "resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.6.0.tgz",
-          "integrity": "sha512-q5BZJI0n/B10VaQQvln1IlDK3BTBJFbADx7tv+oXDPIDZuTo37H5Adb9jhlXm/fEN4Y7/64qD9mnrJJG7rmaTw==",
-          "requires": {
-            "core-js": "^2.6.5",
-            "regenerator-runtime": "^0.13.2"
-          }
-        }
       }
     },
     "chalk": {