gnu: electrum: Update to 4.0.9.
* gnu/packages/finance.scm (electrum): Update to 4.0.9.
[inputs]: Remove python-pyaes, python-pysocks, python-sip,
python-pbkdf2, python-requests, python-jsonrpclib-pelix and
python-ecdsa, python-dnspython-1.16. Add python-dnspython,
python-bitstring, python-attrs, python-cryptography, python-qdarkstyle
and libsecp256k1.
[arguments]: Copy 'use-libsecp256k1-input phase from
(electron-cash) to #:phases to fix runtime lookup of libsecp256k1
library.
Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
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