fix requirements.txt syntax

AdeelH · AdeelH · commit f4e429db189c · 2023-09-07T17:46:05.000-04:00
diff --git a/rastervision_gdal_vsi/requirements.txt b/rastervision_gdal_vsi/requirements.txt
@@ -1,2 +1,2 @@
 rastervision_pipeline==0.21.1
-gdal>=3.4.1<=3.6.3
+gdal>=3.4.1,<=3.6.3
