chore(deps): update helm release hcloud-csi to v2.20.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
hcloud-csi	helm_release	patch	2.20.0 → 2.20.2

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Release Notes

hetznercloud/csi-driver (hcloud-csi)

v2.20.2

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Volume Label Truncation Issue

The label value truncation introduced in v2.20.1 could produce values
starting with a non-alphanumeric character (e.g. -), which is invalid
per the https://docs.hetzner.cloud/reference/cloud#description/labels.
Truncated values are now stripped of leading non-alphanumeric characters
to ensure they remain valid.

Bug Fixes

• strip leading non-alphanumeric characters after truncating volume label (#​1328)

v2.20.1

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Validate Volume Labels

With this release, volume labels are validated against Hetzner Cloud API requirements before a volume is created.

To avoid breaking existing setups, label values that exceed the maximum length of 63 characters are automatically truncated from the left, keeping the last 63 characters. This is especially relevant for automatically set labels like pvc-name, pvc-namespace, and pv-name, which may contain long Kubernetes resource names.

Bug Fixes

• validate hcloud volume labels (#​1304)

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