Cumulative histogram support and improved query sanitization

Added

• Sanitize database query attributes following the OpenTelemetry Semantic Conventions 1.30 database specification. We now sanitize SQL queries in the db.query.text attribute and Redis queries in the db.operation.name attribute.
• Add support for cumulative histograms. The previous known state of a cumulative histogram will be stored and its delta will be calculated, in order to send it to AppSignal as a delta histogram.

This release can be installed through our collector packages and Docker image.