Tests

Bump third_party/pigweed/repo from `1f12d06` to `dea7775` #2376

Job	Run time
Test Suites - Linux (no-ble-tsan-clang)	6m 38s
REPL Tests - Darwin	0s
REPL Tests - Linux	6m 51s
Test Suites - Darwin (no-ble-asan-clang)	3m 10s
Test Suites - Darwin (no-ble-tsan-clang)	1m 40s
	18m 19s

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