feat(integrations): add ICal (#3980)

Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

pnpm-lock.yaml

@@ -1477,6 +1477,9 @@ importers:
       '@octokit/auth-app':
         specifier: ^8.1.0
         version: 8.1.0
+      ical.js:
+        specifier: ^2.2.1
+        version: 2.2.1
       maria2:
         specifier: ^0.4.1
         version: 0.4.1
@@ -6925,6 +6928,9 @@ packages:
     resolution: {integrity: sha512-/1/GPCpDUCCYwlERiYjxoczfP0zfvZMU/OWgQPMya9AbAE24vseigFdhAMObpc8Q4lc/kjutPfUddDYyAmejnA==}
     engines: {node: '>=18.18.0'}
 
+  ical.js@2.2.1:
+    resolution: {integrity: sha512-yK/UlPbEs316igb/tjRgbFA8ZV75rCsBJp/hWOatpyaPNlgw0dGDmU+FoicOcwX4xXkeXOkYiOmCqNPFpNPkQg==}
+
   iconv-lite@0.4.24:
     resolution: {integrity: sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==}
     engines: {node: '>=0.10.0'}
@@ -15991,6 +15997,8 @@ snapshots:
 
   human-signals@8.0.0: {}
 
+  ical.js@2.2.1: {}
+
   iconv-lite@0.4.24:
     dependencies:
       safer-buffer: 2.1.2