chore: remove stub types

Signed-off-by: blam <ben@blam.sh>

packages/backend-tasks/package.json

@@ -49,7 +49,6 @@
   "devDependencies": {
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
-    "@types/cron": "^2.0.0",
     "wait-for-expect": "^3.0.2"
   },
   "files": [

yarn.lock

@@ -3448,7 +3448,6 @@ __metadata:
     "@backstage/errors": "workspace:^"
     "@backstage/types": "workspace:^"
     "@opentelemetry/api": ^1.3.0
-    "@types/cron": ^2.0.0
     "@types/luxon": ^3.0.0
     cron: ^3.0.0
     knex: ^3.0.0
@@ -18083,16 +18082,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/cron@npm:^2.0.0":
-  version: 2.0.1
-  resolution: "@types/cron@npm:2.0.1"
-  dependencies:
-    "@types/luxon": "*"
-    "@types/node": "*"
-  checksum: 4268c784750a1373036b4de95cd1f35ab4fa5227c1639302eedb25a35900d7805271e33b557ad7ccccd6d1829944963df25cd0d9d0d603abf3bcdf148b69ea5d
-  languageName: node
-  linkType: hard
-
 "@types/cross-spawn@npm:^6.0.2":
   version: 6.0.6
   resolution: "@types/cross-spawn@npm:6.0.6"
@@ -18712,7 +18701,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/luxon@npm:*, @types/luxon@npm:^3.0.0, @types/luxon@npm:~3.3.0":
+"@types/luxon@npm:^3.0.0, @types/luxon@npm:~3.3.0":
   version: 3.3.8
   resolution: "@types/luxon@npm:3.3.8"
   checksum: 026711b4aefc01c6e233e359c693b6d4c0873acc3f52a08661ea3751b2cf3e34d1ce1d5b0b99b0e40a059a2a3755acc20498d37db5f9a5a4f0f330cdf72db3db