Update ramalama/proxy_support.py

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>

Author: rhatdan

ramalama/proxy_support.py

@@ -33,9 +33,7 @@ def _get_proxy_env() -> dict[str, str | None]:
     proxy_env = {}
 
     for var in proxy_vars:
-        # Check lowercase first, then uppercase
-        value = os.environ.get(var) or os.environ.get(var.upper())
-        if value:
+        if value := os.environ.get(var) or os.environ.get(var.upper()):
             proxy_env[var] = value
             logger.debug(f"Found proxy setting: {var}={value}")