bump kde runtime to 23.08

[p-fruck]

While trying to fix #115 in #130 I also bumped the KDE runtime to 23.10

I've separated the two PRs in case you only want to use the fix and not upgrade the runtime yet for whatever reason

[flathubbot]

Started test build 83245

[flathubbot]

Build 83245 failed

[bbhtt]

Please add a cleanup for flathub.json to make the build pass. This is should be temporary.

- name: cleanup-flathub-json
  buildsystem: simple
  build-commands:
    - rm -rvf ${FLATPAK_DEST}/flathub.json

[flathubbot]

Started test build 83398

[flathubbot]

Build 83398 failed

[flathubbot]

Started test build 83399

[flathubbot]

Build 83399 successful To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/66033/com.nextcloud.desktopclient.nextcloud.flatpakref

[bbhtt]

You can remove the cleanup now.

[flathubbot]

Started test build 84349

[flathubbot]

Build 84349 successful To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/66986/com.nextcloud.desktopclient.nextcloud.flatpakref

[p-fruck]

Hey there :wave: Is there anything left in order to merge this PR and #130? I would like to rebase #130 once this PR is merged, then the pipeline should succeed for the other PR too.

[tilosp]

bot, build

[flathubbot]

Queued test build for com.nextcloud.desktopclient.nextcloud.

[flathubbot]

Started test build 86129

[flathubbot]

Build 86129 successful To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/68793/com.nextcloud.desktopclient.nextcloud.flatpakref

[tilosp]

Thanks for your contribution!