base: refreeze requirements.txt

Author: jupyterhub-bot

base/requirements.txt

@@ -15,7 +15,7 @@ attrs==25.3.0
     # via
     #   jsonschema
     #   referencing
-certifi==2025.1.31
+certifi==2025.4.26
     # via requests
 certipy==0.2.2
     # via jupyterhub
@@ -27,7 +27,7 @@ cryptography==44.0.2
     # via certipy
 fqdn==1.5.1
     # via jsonschema
-greenlet==3.2.0
+greenlet==3.2.1
     # via sqlalchemy
 idna==3.10
     # via
@@ -42,7 +42,7 @@ jsonpointer==3.0.0
     # via jsonschema
 jsonschema==4.23.0
     # via jupyter-events
-jsonschema-specifications==2024.10.1
+jsonschema-specifications==2025.4.1
     # via jsonschema
 jupyter-events==0.12.0
     # via jupyterhub