Added missing flags for CAPI operator

[Cellebyte]

• Due to ✨ Implement diagnostics fields in Providers CRD kubernetes-sigs/cluster-api-operator#871 fixed CLI flags.

CLI flags

Usage of ./manager:
      --diagnostics-address string         The address the diagnostics endpoint binds to. Per default metrics are served via https and withauthentication/authorization. To serve via http and without authentication/authorization set --insecure-diagnostics. If --insecure-diagnostics is not set the diagnostics endpoint also serves pprof endpoints and an endpoint to change the log level. (default ":8443")
      --health-probe-bind-address string   The address the probe endpoint binds to. (default ":8081")
      --insecure-diagnostics               Enable insecure diagnostics serving. For more details see the description of --diagnostics-address.
      --kubeconfig string                  Paths to a kubeconfig. Only required if out-of-cluster.
      --leader-elect                       Enable leader election for controller manager. Enabling this will ensure there is only one active controller manager.
      --namespace string                   Namespace that the controller watches to reconcile cluster-api objects. If unspecified, the controller watches for cluster-api objects across all namespaces.
      --tls-cipher-suites strings          Comma-separated list of cipher suites for the webhook server and metrics server (the latter only if --insecure-diagnostics is not set to true). If omitted, the default Go cipher suites will be used. 
                                           Preferred values: TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256. 
                                           Insecure values: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_RC4_128_SHA.
      --tls-min-version string             The minimum TLS version in use by the webhook server and metrics server (the latter only if --insecure-diagnostics is not set to true).
                                           Possible values are VersionTLS10, VersionTLS11, VersionTLS12, VersionTLS13. (default "VersionTLS12")
      --watch-filter string                
      --webhook-cert-dir string            Webhook cert dir, only used when webhook-port is specified.
      --webhook-cert-name string           Webhook cert name.
      --webhook-key-name string            Webhook key name.
      --webhook-port int                   Webhook Server port (default 9443)
      --zap-devel                          Development Mode defaults(encoder=consoleEncoder,logLevel=Debug,stackTraceLevel=Warn). Production Mode defaults(encoder=jsonEncoder,logLevel=Info,stackTraceLevel=Error) (default true)
      --zap-encoder encoder                Zap log encoding (one of 'json' or 'console')
      --zap-log-level level                Zap Level to configure the verbosity of logging. Can be one of 'debug', 'info', 'error', 'panic'or any integer value > 0 which corresponds to custom debug levels of increasing verbosity
      --zap-stacktrace-level level         Zap Level at and above which stacktraces are captured (one of 'info', 'error', 'panic').
      --zap-time-encoding time-encoding    Zap time encoding (one of 'epoch', 'millis', 'nano', 'iso8601', 'rfc3339' or 'rfc3339nano'). Defaults to 'epoch'.

[watzkuh]

LGTM