chore(deps): update dependency openvpn/easy-rsa to v3.2.6 (#1480)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [OpenVPN/easy-rsa](https://redirect.github.com/OpenVPN/easy-rsa) |
patch | `3.2.5` → `3.2.6` |

---

### Release Notes

<details>
<summary>OpenVPN/easy-rsa (OpenVPN/easy-rsa)</summary>

###
[`v3.2.6`](https://redirect.github.com/OpenVPN/easy-rsa/releases/tag/v3.2.6):
3.2.6

[Compare
Source](https://redirect.github.com/OpenVPN/easy-rsa/compare/v3.2.5...v3.2.6)

#### What's Changed

- CI: Enable shell switch errexit by
[@&#8203;TinCanTech](https://redirect.github.com/TinCanTech) in
[#&#8203;1417](https://redirect.github.com/OpenVPN/easy-rsa/pull/1417)
- V325 326 minor touches by
[@&#8203;TinCanTech](https://redirect.github.com/TinCanTech) in
[#&#8203;1421](https://redirect.github.com/OpenVPN/easy-rsa/pull/1421)
- Inline sub ca v1 by
[@&#8203;TinCanTech](https://redirect.github.com/TinCanTech) in
[#&#8203;1423](https://redirect.github.com/OpenVPN/easy-rsa/pull/1423)
- X509-Type ca: Enable 'basicConstraints = critical' for CA/subCA
certificates by
[@&#8203;TinCanTech](https://redirect.github.com/TinCanTech) in
[#&#8203;1428](https://redirect.github.com/OpenVPN/easy-rsa/pull/1428)
- Import tls key v1 by
[@&#8203;TinCanTech](https://redirect.github.com/TinCanTech) in
[#&#8203;1429](https://redirect.github.com/OpenVPN/easy-rsa/pull/1429)
- import\_tls\_key(): Use set\_no\_clobber() to preserve existing key
file by [@&#8203;TinCanTech](https://redirect.github.com/TinCanTech) in
[#&#8203;1430](https://redirect.github.com/OpenVPN/easy-rsa/pull/1430)

**Full Changelog**:
<https://github.com/OpenVPN/easy-rsa/compare/v3.2.5...v3.2.6>

</details>

---

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---

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openvpn-install.sh

@@ -9,8 +9,8 @@
 # Configuration constants
 readonly DEFAULT_CERT_VALIDITY_DURATION_DAYS=3650 # 10 years
 readonly DEFAULT_CRL_VALIDITY_DURATION_DAYS=5475  # 15 years
-readonly EASYRSA_VERSION="3.2.5"
+readonly EASYRSA_VERSION="3.2.6"
-readonly EASYRSA_SHA256="662ee3b453155aeb1dff7096ec052cd83176c460cfa82ac130ef8568ec4df490"
+readonly EASYRSA_SHA256="c2572990ce91112eef8d1b8e4a3b58790da95b68501785c621f69121dfbd22d7"
 
 # =============================================================================
 # Logging Configuration