struct tag of PulsarConfig does not comply with APIv2 standards

[CharlesCheung96]

struct tag of PulsarConfig does not comply with APIv2 standards where the tag name should be delimited by an underscore rather than a dash.

tiflow/cdc/api/v2/model.go

Lines 1193 to 1213 in 58636ed

	type PulsarConfig struct {
	TLSKeyFilePath *string `json:"tls-certificate-path,omitempty"`
	TLSCertificateFile *string `json:"tls-private-key-path,omitempty"`
	TLSTrustCertsFilePath *string `json:"tls-trust-certs-file-path,omitempty"`
	PulsarProducerCacheSize *int32 `json:"pulsar-producer-cache-size,omitempty"`
	PulsarVersion *string `json:"pulsar-version,omitempty"`
	CompressionType *string `json:"compression-type,omitempty"`
	AuthenticationToken *string `json:"authentication-token,omitempty"`
	ConnectionTimeout *int `json:"connection-timeout,omitempty"`
	OperationTimeout *int `json:"operation-timeout,omitempty"`
	BatchingMaxMessages *uint `json:"batching-max-messages,omitempty"`
	BatchingMaxPublishDelay *int `json:"batching-max-publish-delay,omitempty"`
	SendTimeout *int `json:"send-timeout,omitempty"`
	TokenFromFile *string `json:"token-from-file,omitempty"`
	BasicUserName *string `json:"basic-user-name,omitempty"`
	BasicPassword *string `json:"basic-password,omitempty"`
	AuthTLSCertificatePath *string `json:"auth-tls-certificate-path,omitempty"`
	AuthTLSPrivateKeyPath *string `json:"auth-tls-private-key-path,omitempty"`
	OAuth2 *PulsarOAuth2 `json:"oauth2,omitempty"`
	OutputRawChangeEvent *bool `json:"output-raw-change-event,omitempty"`
	}