bump: Update conda package description and python support version

Author: kayjan

conda/conda_build_config.yaml

@@ -1,6 +1,6 @@
 python:
-  - 3.7
   - 3.8
   - 3.9
   - 3.10
   - 3.11
+  - 3.12

conda/meta.yaml

@@ -15,11 +15,11 @@ build:
 
 requirements:
   host:
-    - python >=3.7
+    - python >=3.8
     - hatchling
     - pip
   run:
-    - python >=3.7
+    - python >=3.8
 
 test:
   imports:
@@ -33,7 +33,7 @@ about:
   license: MIT
   license_family: MIT
   license_file: LICENSE
-  summary: Tree Implementation and Methods for Python, integrated with Python list, dictionary, and pandas DataFrame.
+  summary: Tree Implementation and Methods for Python, integrated with list, dictionary, pandas and polars DataFrame.
   doc_url: https://bigtree.readthedocs.io/en/latest/
 
 extra: