Update CompatHelper.yml to automatically bump version for main project (#357)

* Update CompatHelper.yml to automatically bump version for main project
* requires CompatHelper v3

Author: st--

.github/workflows/CompatHelper.yml

@@ -15,7 +15,7 @@ jobs:
           import Pkg
           name = "CompatHelper"
           uuid = "aa819f21-2bde-4658-8897-bab36330d9b7"
-          version = "2"
+          version = "3"
           Pkg.add(; name, uuid, version)
         shell: julia --color=yes {0}
       - name: "Run CompatHelper"
@@ -28,7 +28,7 @@ jobs:
               end
           end
           @info "CompatHelper directories" subdirs
-          CompatHelper.main(; subdirs=subdirs)
+          CompatHelper.main(; subdirs=subdirs, bump_version=true)
         shell: julia --color=yes {0}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}