chore(deps): update dependency openpgpjs/openpgpjs to v5.2.0

This MR contains the following updates:

Package	Update	Change
openpgpjs/openpgpjs	minor	v5.1.0 -> v5.2.0

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Release Notes

openpgpjs/openpgpjs

v5.2.0

Compare Source

• Drop MS Edge Legacy support (#​1474)
• Check existence of navigator before using it (#​1475)
• Fix Key.isRevoked() and SignaturePacket.verify() TypeScript definitions, and remove SignaturePacket.verified from Typescript declarations (#​1486, #​1494)
• CI: Update mocha (#​1503)

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