Update dependency semgrep to v1.56.0

This MR contains the following updates:

Package	Update	Change
semgrep	minor	1.55.2 -> 1.56.0
semgrep	minor	==1.55.2 -> ==1.56.0

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Release Notes

returntocorp/semgrep (semgrep)

v1.56.0

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Added

• Added a new field that breaks down the number of findings per product in the metrics that are sent out by the CLI. This will help Semgrep understand users better. (pa-3312)

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