chore: temporarily downgrade armhf dependencies

Allow piwheels to apply - which should make the armhf build a lot faster.

Author: xmatthias

requirements.txt

@@ -1,5 +1,7 @@
-numpy==2.3.2
-pandas==2.3.1
+numpy==2.3.2; platform_machine != 'armv7l'
+numpy==2.2.4; platform_machine == 'armv7l'
+pandas==2.3.1; platform_machine != 'armv7l'
+pandas==2.2.3; platform_machine == 'armv7l'
 bottleneck==1.5.0
 numexpr==2.11.0
 # Indicator libraries