feat: implement pktvisor config parser

[leoparente]

This pull request includes several changes to the pktvisor backend in the agent package. The key changes involve updating configuration handling, modifying default settings, and improving error handling. Below are the most important changes:

Configuration Handling:

• Introduced the creation of a temporary YAML configuration file within the Configure method, including the conversion of the configuration map to YAML and writing it to the temp file. (agent/backend/pktvisor/pktvisor.go)

Default Settings:

• Removed the defaultConfigPath constant and updated default settings for host and port in RegisterBackendSpecificVariables. (agent/backend/pktvisor/pktvisor.go, agent/backend/pktvisor/vars.go) [1] [2]

Imports and Dependencies:

• Added new imports for fmt, os, and yaml.v3 to support the new configuration handling logic. (agent/backend/pktvisor/pktvisor.go)

[github-actions]

Go test coverage

STATUS	ELAPSED	PACKAGE	COVER	PASS	FAIL	SKIP
🟢 PASS	1.03s	github.com/netboxlabs/orb-agent/agent	0.0%	1	0	0
🟢 PASS	0.01s	github.com/netboxlabs/orb-agent/agent/backend	0.0%	0	0	0
🟢 PASS	0.00s	github.com/netboxlabs/orb-agent/agent/backend/devicediscovery	0.0%	0	0	0
🟢 PASS	0.00s	github.com/netboxlabs/orb-agent/agent/backend/networkdiscovery	0.0%	0	0	0
🟢 PASS	0.00s	github.com/netboxlabs/orb-agent/agent/backend/otel	0.0%	0	0	0
🟢 PASS	0.00s	github.com/netboxlabs/orb-agent/agent/backend/pktvisor	0.0%	0	0	0
🟢 PASS	0.01s	github.com/netboxlabs/orb-agent/agent/backend/worker	0.0%	0	0	0
🟢 PASS	0.01s	github.com/netboxlabs/orb-agent/agent/configmgr	0.0%	0	0	0
🟢 PASS	0.01s	github.com/netboxlabs/orb-agent/agent/policies	0.0%	0	0	0
🟢 PASS	0.01s	github.com/netboxlabs/orb-agent/agent/policymgr	0.0%	0	0	0
🟢 PASS	1.01s	github.com/netboxlabs/orb-agent/agent/version	100.0%	1	0	0

Total coverage: 0.8%

[github-actions]

🎉 This PR is included in version 1.2.0 🎉

The release is available on GitHub release

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