chore: bump python 'holidays' lib from 0.25 to 0.49

I simply removed the upper bound for the holidays lib and ran
`pip-compile-multi -P holidays`. Note that `pip-compile-multi`
isn't as' deterministic as we'd like for it to be, but things should be
fine as "# vias" are just informational here.

pyproject.toml

@@ -57,7 +57,7 @@ dependencies = [
     "geopy",
     "gunicorn>=22.0.0; sys_platform != 'win32'",
     "hashids>=1.3.1, <2",
-    "holidays>=0.25, <0.26",
+    "holidays>=0.25",
     "humanize",
     "importlib_metadata",
     "isodate",

requirements/base.txt

@@ -15,6 +15,8 @@ apispec[yaml]==6.3.0
     # via flask-appbuilder
 apsw==3.46.0.0
     # via shillelagh
+async-timeout==4.0.3
+    # via redis
 attrs==23.2.0
     # via
     #   cattrs
@@ -91,6 +93,8 @@ dnspython==2.6.1
     # via email-validator
 email-validator==2.1.1
     # via flask-appbuilder
+exceptiongroup==1.2.1
+    # via cattrs
 flask==2.3.3
     # via
     #   apache-superset
@@ -144,14 +148,12 @@ geopy==2.4.1
 google-auth==2.29.0
     # via shillelagh
 greenlet==3.0.3
-    # via
-    #   shillelagh
-    #   sqlalchemy
+    # via shillelagh
 gunicorn==22.0.0
     # via apache-superset
 hashids==1.3.1
     # via apache-superset
-holidays==0.25
+holidays==0.49
     # via apache-superset
 humanize==4.9.0
     # via apache-superset
@@ -177,8 +179,6 @@ jsonschema==4.17.3
     # via flask-appbuilder
 kombu==5.3.7
     # via celery
-korean-lunar-calendar==0.3.1
-    # via holidays
 limits==3.12.0
     # via flask-limiter
 llvmlite==0.42.0
@@ -356,6 +356,7 @@ typing-extensions==4.12.0
     # via
     #   alembic
     #   apache-superset
+    #   cattrs
     #   flask-limiter
     #   limits
     #   shillelagh