Fix dependency resolution of zlib on Windows (issue #74)

conanfile.py

@@ -23,6 +23,7 @@ class CaosdbConan(ConanFile):
     generators = "cmake"
     requires = [
         ("grpc/1.48.0"),
+        ("zlib/1.3.1")
     ]
     build_requires = [
         ("boost/1.78.0"),