GDAL version requirement lowered

PratyushTripathy · web-flow · commit a0338d216b96 · 2021-12-15T20:08:14.000+05:30
This maybe necessary to match the version of GDAL with the readthedocs requirements.
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,3 @@
-GDAL>=3.0.0
+GDAL>=2.2.3
 numpy>=1.20.0
-scikit-learn>=0.22
+scikit-learn>=0.22
