test: enable functional tests with large rpc args for cli

Also, the following tests (for which self.supports_cli = False was not
set) will now work with --usecli:

feature_fastprune.py
feature_fee_estimation.py
feature_reindex_readonly.py
feature_taproot.py
mempool_package_rbf.py
p2p_net_deadlock.py
p2p_tx_download.py
rpc_packages.py

test/functional/feature_maxuploadtarget.py

@@ -52,7 +52,6 @@ class MaxUploadTest(BitcoinTestFramework):
         self.extra_args = [[
             f"-maxuploadtarget={UPLOAD_TARGET_MB}M",
         ]]
-        self.supports_cli = False
 
     def assert_uploadtarget_state(self, *, target_reached, serve_historical_blocks):
         """Verify the node's current upload target state via the `getnettotals` RPC call."""