fix: Update subxt 0.44 API compatibility for workspace-wide compilation

- txtesttool: Update dynamic storage API (try_fetch, Value type)
- txtesttool: Add From<ExtrinsicError> for Error
- omni-node-lib: Replace StorageEntryType with keys()/value_ty() API

Workspace cargo check now passes successfully.

bizinikiwi/utils/txtesttool/src/error.rs

@@ -17,3 +17,9 @@ pub enum Error {
 	#[error("Mortal transaction lifetime surpassed, block number: {0}")]
 	MortalLifetimeSurpassed(u64),
 }
+
+impl From<subxt::error::ExtrinsicError> for Error {
+	fn from(err: subxt::error::ExtrinsicError) -> Self {
+		Error::Subxt(subxt::Error::from(err))
+	}
+}