fix: DPE-6137 refator for password safety (#579)

* refactor mysql-cli and mysqlsh to ensure password safety

* libpatch bump

* s/mysql-connector-python/pexpect/

* Ensure all errors are bubbled from spawned process

* test size before content

* more informative output example

* ensure password not leak through exceptions logging

* uniform exception/warning and fix async test to faster exec time

Author: paulomach

lib/charms/mysql/v0/mysql.py

@@ -13,8 +13,10 @@ boto3 = "^1.28.23"
 typing_extensions = "^4.7.1"
 jinja2 = "^3.1.2"
 python_hosts = "^1.0.6"
+pexpect = "^4.9.0"
 pyyaml = "^6.0.2"
 
+
 [tool.poetry.group.charm-libs.dependencies]
 # data_platform_libs/v0/data_interfaces.py
 ops = ">=2.0.0"
@@ -49,7 +51,7 @@ shellcheck-py = "^0.9.0.5"
 [tool.poetry.group.unit.dependencies]
 pytest = "^7.4.0"
 pytest-mock = "^3.11.1"
-coverage = {extras = ["toml"], version = "^7.2.7"}
+coverage = { extras = ["toml"], version = "^7.2.7" }
 parameterized = "^0.9.0"
 
 [tool.poetry.group.integration.dependencies]
@@ -60,7 +62,7 @@ pytest-operator = "^0.28.0"
 pytest-operator-cache = {git = "https://github.com/canonical/data-platform-workflows", tag = "v29.0.0", subdirectory = "python/pytest_plugins/pytest_operator_cache"}
 pytest-operator-groups = {git = "https://github.com/canonical/data-platform-workflows", tag = "v29.0.0", subdirectory = "python/pytest_plugins/pytest_operator_groups"}
 juju = "^3.6.0.0"
-mysql-connector-python = "~8.0.33"
+mysql-connector-python = "^9.1.0"
 tenacity = "^8.2.2"
 boto3 = "^1.28.11"
 pyyaml = "^6.0"
@@ -93,8 +95,8 @@ line-length = 99
 explicit-preview-rules = true
 select = ["A", "E", "W", "F", "C", "N", "D", "I", "CPY001"]
 ignore = [
-    "D107", # Ignore D107 Missing docstring in __init__
-    "E501", # Ignore E501 Line too long
+  "D107", # Ignore D107 Missing docstring in __init__
+  "E501", # Ignore E501 Line too long
 ]
 
 [tool.ruff.lint.per-file-ignores]