Release v0.5.1

[skitt]

This release proposal follows a lazy consensus model: the proposal is approved unless an OWNER objects within two weeks of this issue being opened. Silence is treated as approval.

Changes since the last release (v0.5.0)

• conformance: increase timeout for pods start up #154
• Add endpointSliceObjects field #155

Known issues

None.

[MrFreezeex]

FYI I tested to port Cilium to the new version and the conformance tests still runs smoothly there :D (cilium/cilium#46533)