Update nri-docker and nri-flex and update docker v28 to v29

[gmanandhar-nr]

Updated nri-docker and nri-flex version to remediate CVE-2026-34040

[muruganishekar]

LGTM

[coveralls]

Coverage Report for CI Build 24240667314

Coverage increased (+0.02%) to 53.501%

Details

• Coverage increased (+0.02%) from the base build.
• Patch coverage: 16 uncovered changes across 3 files (26 of 42 lines covered, 61.9%).
• 4 coverage regressions across 4 files.

Uncovered Changes

File	Changed	Covered	%
pkg/helpers/docker_utils.go	11	0	0.0%
pkg/ctl/sender/client_docker.go	3	0	0.0%
pkg/databind/internal/discovery/docker/docker.go	13	11	84.62%

Coverage Regressions

4 previously-covered lines in 4 files lost coverage.

File	Lines Losing Coverage	Coverage
internal/agent/event_sender.go	1	78.11%
internal/httpapi/httpapi.go	1	74.82%
pkg/ctl/sender/client_docker.go	1	0.0%
pkg/helpers/docker_utils.go	1	0.0%

---

Coverage Stats

Relevant Lines:	27119
Covered Lines:	14509
Line Coverage:	53.5%
Coverage Strength:	19.89 hits per line

---

💛 - Coveralls

[gmanandhar-nr]

trivy scan showing 0 vulnerabilities:

[muruganishekar]

Can we make PR naming in appropriate length and according to the standards