Read version for pages using plain python

pages/main.py

-import subprocess
+ragconnectVersionFileName = '../ragconnect.base/src/main/resources/ragConnectVersion.properties'
 
 
 def get_version():
-    proc = subprocess.run('./gradlew printVersion --quiet',
-                          shell=True,
-                          capture_output=True,
-                          text=True,
-                          cwd='..')
-    return proc.stdout
+    with open(ragconnectVersionFileName) as ragconnectVersionFile:
+        versionFileContent = ragconnectVersionFile.read()
+    return versionFileContent[versionFileContent.rindex('version=') + 8:].strip()
 
 
 def define_env(env):