Update dependency pigpio to v1.2.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
pigpio	optionalDependencies	patch	1.2.0 -> 1.2.1	source

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Release Notes

fivdi/pigpio

v1.2.1

Compare Source

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• update dependencies (nan v2.12.1, bindings 1.3.1)

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Pull Request Test Coverage Report for Build 308

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 306:	0.0%
Covered Lines:	203
Relevant Lines:	203

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💛 - Coveralls