Bump pymodbus from 3.6.3 to 3.6.4

[dependabot[bot]]

Bumps pymodbus from 3.6.3 to 3.6.4.

Changelog

Sourced from pymodbus's changelog.

Version 3.6.4

• Update datastore_simulator example with client (#1967)
• Test and correct receiving more than one packet (#1965)
• Remove unused FifoTransactionManager. (#1966)
• Always set exclusive serial port access. (#1964)
• Add server/client network stub, to allow test of network packets. (#1963)
• Combine conftest to a central file (#1962)
• Call on_reconnect_callback. (#1959)
• Readd ModbusBaseClient to external API.
• Update README.rst
• minor fix for typo and consistency (#1946)
• More coverage. (#1947)
• Client coverage 100%. (#1943)
• Run coverage in CI with % check of coverage. (#1945)
• transport 100% coverage. (#1941)
• contrib example: TCP drainage simulator with two devices (#1936)
• Remove "pragma no cover". (#1935)
• transport_serial -> serialtransport. (#1933)
• Fix behavior after Exception response (#1931)
• Correct expected length for udp sync client. (#1930)

Commits

• 86dae1a Merge branch 'dev'
• 0d4e7ea Prepare v3.6.4 (#1969)
• 73daed1 Update datastore_simulator example with client (#1967)
• 9b67640 Test and correct receiving more than one packet (#1965)
• 2a6433a Remove unused FifoTransactionManager. (#1966)
• c59b9fd Always set exclusive serial port access. (#1964)
• d552c1b Add server/client network stub, to allow test of network packets. (#1963)
• dedcb8b Combine conftest to a central file (#1962)
• 0a9d23e Call on_reconnect_callback. (#1959)
• 66af5b6 Readd ModbusBaseClient to external API.
• Additional commits viewable in compare view

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