fix(odbc): replace static ODBC environment with direct environment initialization

Author: lovasoa

sqlx-core/src/odbc/connection/worker.rs

@@ -1,4 +1,3 @@
-use std::sync::OnceLock;
 use std::thread;
 
 use futures_channel::oneshot;
@@ -22,9 +21,6 @@ type ExecuteSender = flume::Sender<ExecuteResult>;
 type PrepareResult = Result<(u64, Vec<OdbcColumn>, usize), Error>;
 type PrepareSender = oneshot::Sender<PrepareResult>;
 
-// Shared ODBC environment - initialized once, used by all connections
-static ODBC_ENV: OnceLock<&'static odbc_api::Environment> = OnceLock::new();
-
 #[derive(Debug)]
 pub(crate) struct ConnectionWorker {
     command_tx: flume::Sender<Command>,
@@ -177,11 +173,7 @@ fn worker_thread_main(
 fn establish_connection(options: &OdbcConnectOptions) -> Result<OdbcConnection, Error> {
     // Get or create the shared ODBC environment
     // This ensures thread-safe initialization and prevents concurrent environment creation issues
-    let env = ODBC_ENV.get_or_init(|| {
-        Box::leak(Box::new(
-            odbc_api::Environment::new().expect("Failed to create ODBC environment"),
-        ))
-    });
+    let env = odbc_api::environment().map_err(|e| Error::Configuration(e.to_string().into()))?;
 
     let conn = env
         .connect_with_connection_string(options.connection_string(), Default::default())