env_logger: Use try_init in case a logger was already initialized

From env_logger::init :

This function will panic if it is called more than once, or if
another library has already initialized a global logger.

Use env_logger::try_init instead to make sure the code does not
panic unnecessarily.

Signed-off-by: Tomás González <tomasagustin.gonzalezorlando@arm.com>

Author: tgonzalezorlandoarm

parsec-openssl-provider/src/lib.rs

@@ -30,7 +30,7 @@ pub unsafe fn parsec_provider_provider_init(
     out: *mut *const OSSL_DISPATCH,
     provctx: types::VOID_PTR_PTR,
 ) -> Result<(), parsec_openssl2::Error> {
-    env_logger::init();
+    let _ = env_logger::try_init();
 
     let parsec_provider_teardown_ptr: ProviderTeardownPtr = parsec_provider_teardown;