chore: update helm chart

[dspo]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches
• Documentation
• Refactor
• Chore
• CI/CD or Tests

What this PR does / why we need it:

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[github-actions]

conformance test report

apiVersion: gateway.networking.k8s.io/v1
date: "2025-04-24T07:21:02Z"
gatewayAPIChannel: standard
gatewayAPIVersion: v1.2.0
implementation:
  contact: null
  organization: API7
  project: api7-ingress-controller
  url: https://github.com/api7/api7-ingress-controller.git
  version: v2.0.0
kind: ConformanceReport
mode: default
profiles:
- core:
    result: partial
    skippedTests:
    - GatewayInvalidTLSConfiguration
    - GatewaySecretInvalidReferenceGrant
    - GatewaySecretMissingReferenceGrant
    - GatewaySecretReferenceGrantAllInNamespace
    - GatewaySecretReferenceGrantSpecific
    - HTTPRouteExactPathMatching
    - HTTPRouteHTTPSListener
    - HTTPRouteHeaderMatching
    - HTTPRouteHostnameIntersection
    - HTTPRouteInvalidBackendRefUnknownKind
    - HTTPRouteInvalidCrossNamespaceBackendRef
    - HTTPRouteInvalidCrossNamespaceParentRef
    - HTTPRouteInvalidNonExistentBackendRef
    - HTTPRouteInvalidParentRefNotMatchingSectionName
    - HTTPRouteInvalidReferenceGrant
    - HTTPRouteListenerHostnameMatching
    - HTTPRouteMatching
    - HTTPRouteMatchingAcrossRoutes
    - HTTPRoutePartiallyInvalidViaInvalidReferenceGrant
    - HTTPRouteReferenceGrant
    - HTTPRouteRequestHeaderModifier
    - HTTPRouteWeight
    statistics:
      Failed: 0
      Passed: 11
      Skipped: 22
  name: GATEWAY-HTTP
  summary: Core tests partially succeeded with 22 test skips.

[ronething]

should add config fields from config.yaml

api7-ingress-controller/config/samples/config.yaml

Lines 9 to 20 in 5c3eb3c

	leader_election:
	lease_duration: 15s # lease_duration is the duration that non-leader candidates will wait
	# after observing a leadership renewal until attempting to acquire leadership of a
	# leader election.
	renew_deadline: 10s # renew_deadline is the time in seconds that the acting controller
	# will retry refreshing leadership before giving up.
	retry_period: 2s # retry_period is the time in seconds that the acting controller
	# will wait between tries of actions with the controller.
	disable: false # Whether to disable leader election.
	exec_adc_timeout: 15s # The timeout for the ADC to execute.
	# The default value is 15 seconds.

[ronething]

And add config to charts/templates/configmap.yaml