chore(deps): update dependency pymodbus to v3.6.7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pymodbus	==3.6.6 -> ==3.6.7

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Release Notes

pymodbus-dev/pymodbus (pymodbus)

v3.6.7

Compare Source

• Add lock to async requests, correct logging and length calc. (FIX, not on dev)
• test_simulator: use unused_tcp_port fixture (#​2141)
• streamline imports in Factory.py (#​2140)
• Secure testing is done with pymodbus in PR. (#​2136)
• Fix link to github in README (#​2134)
• Wildcard exception catch from pyserial. (#​2125)
• Problem with stale CI. (#​2117)
• Add connection exception to list of exceptions catpured in retries (#​2113)
• Move on_reconnect to client level (#​2111)
• Bump github stale. (#​2110)
• update package_test_tool (add 4 test scenarios) (#​2107)
• Bump dependencies. (#​2108)
• Cancel send if no connection. (#​2103)

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