add version upper bounds, drop Julia < 1

Author: stevengj

Project.toml

@@ -11,5 +11,8 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 VersionParsing = "81def892-9a0e-5fdd-b105-ffc91e053289"
 
 [compat]
-PyCall = "≥ 1.90.0"
-julia = "≥ 0.7.0"
+PyCall = "1.90, 1.91, 1.92, 1.93, 1.94. 1.95, 1.96, 1.97, 1.98, 1.99"
+julia = "1"
+LaTeXStrings = "1"
+Colors = "0.9, 0.10, 0.11, 0.12, 1"
+VersionParsing = "1"