fix: upgrade to pydantic 2

Closes #274

popmon/config.py

@@ -21,7 +21,8 @@
 
 import pandas as pd
 from histogrammar.dfinterface.make_histograms import get_time_axes
-from pydantic import BaseModel, BaseSettings
+from pydantic import BaseModel
+from pydantic_settings import BaseSettings
 from typing_extensions import Literal
 
 # Global configuration for the joblib parallelization. Could be used to change the number of jobs, and/or change
@@ -32,7 +33,7 @@
 
 class ValidatedSettings(BaseSettings):
     class Config:
-        validate_all = True
+        validate_default = True
         validate_assignment = True
 
 

pyproject.toml

@@ -31,8 +31,10 @@ dependencies = [
     "plotly>=5.8.0",
     "joblib>=0.14.0",
     "htmlmin",
-    "pydantic",
-    "typing_extensions"
+    "pydantic>=2",
+    "pydantic-settings",
+    "typing_extensions",
+    "tomli >= 1.1.0 ; python_version < '3.11'"
 ]
 classifiers = [
     "Programming Language :: Python :: 3",
@@ -105,6 +107,10 @@ ignore = [
     "TRY003",
     "E501",
     "DTZ",
+    "PERF203", #  `try`-`except` within a loop incurs performance overhead
+
+    # False positive
+    "PERF401", # Use a list comprehension to create a transformed list
 
     # Prefer autofix
     "PD011", # .to_numpy() instead of values
@@ -153,6 +159,10 @@ ignore = [
     "INP001",
 ]
 
+"popmon/config.py" = [
+    "RUF012", # Mutable class attributes should be annotated with `typing.ClassVar`
+]
+
 # Notebooks & NBQA
 "popmon/notebooks/*" = [
     # Imports cannot be checked properly with NBQA