Update dependency traefik-source to v26

[renovate]

This PR contains the following updates:

Package	Update	Change
traefik-source	major	v25.0.0 -> v26.0.0

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Release Notes

traefik/traefik-helm-chart (traefik-source)

v26.0.0

Compare Source

Breaking Changes

This release can be breaking for:

• Plugin user, see PR #​961
• PodAnnotation user, see PR #​972

Features

• 💥 unify plugin import between traefik and this chart (cbddacb)
• 💥 deployment.podannotations support interpolation with tpl (d31b991)
• add file provider (ddd6cee)
• allow defining startupProbe (f061628)
• allow update of namespace policy for websecure listener (2045843)

Bug Fixes

• 🐛 declare http3 udp port, with or without hostport (76dcb02)
• 🐛 improve confusing suggested value on openTelemetry.grpc (6a6efc1)

New Contributors

• @​demolitionmode made their first contribution in https://github.com/traefik/traefik-helm-chart/pull/956
• @​ebuildy made their first contribution in https://github.com/traefik/traefik-helm-chart/pull/937
• @​bennesp made their first contribution in https://github.com/traefik/traefik-helm-chart/pull/967
• @​mysiki made their first contribution in https://github.com/traefik/traefik-helm-chart/pull/961
• @​ivankatliarchuk made their first contribution in https://github.com/traefik/traefik-helm-chart/pull/972

Full Changelog: traefik/traefik-helm-chart@v25.0.0...v26.0.0

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