Update dependency mysql-connector-python to ^9.5.0 (#57)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
|
[mysql-connector-python](https://redirect.github.com/mysql/mysql-connector-python)
([changelog](https://dev.mysql.com/doc/relnotes/connector-python/en/)) |
`^9.4.0` -> `^9.5.0` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/mysql-connector-python/9.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/mysql-connector-python/9.4.0/9.5.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>mysql/mysql-connector-python (mysql-connector-python)</summary>

###
[`v9.5.0`](https://redirect.github.com/mysql/mysql-connector-python/blob/HEAD/CHANGES.txt#v950)

[Compare
Source](https://redirect.github.com/mysql/mysql-connector-python/compare/9.4.0...9.5.0)

\======

-
[WL#17049](https://redirect.github.com/WL/mysql-connector-python/issues/17049):
Remove usage of SQL functions MD5() and SHA1()
-
[WL#17088](https://redirect.github.com/WL/mysql-connector-python/issues/17088):
MySQL Connector Python HeatWave GenAI and ML SDK
-
[WL#17048](https://redirect.github.com/WL/mysql-connector-python/issues/17048):
Remove Python 3.9 support
-
[WL#17045](https://redirect.github.com/WL/mysql-connector-python/issues/17045):
Add support for Python 3.14

</details>

---

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poetry.lock

@@ -53,7 +53,7 @@ pytest = "^8.4.1"
 pytest-operator = "^0.43.1"
 requests = "^2.32.5"
 juju = "^3.6.0.0"
-mysql-connector-python = "^9.4.0"
+mysql-connector-python = "^9.5.0"
 pyyaml = "^6.0.2"
 tenacity = "^9.1.2"
 allure-pytest = "^2.15.0"