matrix-appservice-irc: update SPDX license headers

Update copyright year ranges to reflect actual contributions:
- Thom Wiggers contributions extended to 2026
- Slavi Pantaleev contributions extended to 2026
- Added Jade Ellis as original author of labels.j2

roles/custom/matrix-bridge-appservice-irc/defaults/main.yml

@@ -8,7 +8,7 @@
 # SPDX-FileCopyrightText: 2019 Lyubomir Popov
 # SPDX-FileCopyrightText: 2019 Sylvia van Os
 # SPDX-FileCopyrightText: 2020 John Goerzen
-# SPDX-FileCopyrightText: 2021 - 2023 Thom Wiggers
+# SPDX-FileCopyrightText: 2021 - 2026 Thom Wiggers
 # SPDX-FileCopyrightText: 2021 Ahmad Haghighi
 # SPDX-FileCopyrightText: 2021 Joseph Walton-Rivers
 # SPDX-FileCopyrightText: 2021 Panagiotis Georgiadis

roles/custom/matrix-bridge-appservice-irc/tasks/setup_install.yml

@@ -1,5 +1,6 @@
 # SPDX-FileCopyrightText: 2019 - 2022 MDAD project contributors
-# SPDX-FileCopyrightText: 2019 - 2024 Slavi Pantaleev
+# SPDX-FileCopyrightText: 2019 - 2026 Slavi Pantaleev
+# SPDX-FileCopyrightText: 2025 - 2026 Thom Wiggers
 # SPDX-FileCopyrightText: 2019 Dan Arnfield
 # SPDX-FileCopyrightText: 2020 Chris van Dijk
 # SPDX-FileCopyrightText: 2021 Panagiotis Georgiadis

roles/custom/matrix-bridge-appservice-irc/templates/labels.j2

@@ -1,5 +1,7 @@
 {#
 SPDX-FileCopyrightText: 2025 Jade Ellis
+SPDX-FileCopyrightText: 2025 - 2026 Thom Wiggers
+SPDX-FileCopyrightText: 2026 Slavi Pantaleev
 
 SPDX-License-Identifier: AGPL-3.0-or-later
 #}