Use GitLab CI for Flatpak

.flatpak-manifest.json

@@ -0,0 +1,21 @@
+{
+    "id": "org.kde.konsole",
+    "branch": "master",
+    "runtime": "org.kde.Platform",
+    "runtime-version": "5.15-22.08",
+    "sdk": "org.kde.Sdk",
+    "command": "konsole",
+    "tags": ["nightly"],
+    "desktop-file-name-suffix": " (Nightly)",
+    "finish-args": ["--share=ipc", "--socket=x11", "--socket=wayland", "--talk-name=org.freedesktop.Flatpak" ],
+
+    "modules": [
+        {
+            "name": "konsole",
+            "buildsystem": "cmake-ninja",
+            "sources": [
+                { "type": "dir", "path": "." }
+            ]
+        }
+    ]
+}

.flatpak-manifest.json.license

@@ -0,0 +1,2 @@
+SPDX-License-Identifier: CC0-1.0
+SPDX-FileCopyrightText: none

.gitlab-ci.yml

@@ -9,3 +9,4 @@ include:
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux-qt6.yml
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/freebsd-qt6.yml
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/windows-qt6.yml
+  - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/flatpak.yml