Snmp: use new provider via framework

[jeremmfr]

ENHANCEMENTS:

• resource/junos_snmp: resource now use new terraform-plugin-framework
  optional boolean attributes doesn't accept value false
  optional string attributes doesn't accept empty value
  the resource schema has been upgraded to have one-blocks in single mode instead of list
• resource/junos_snmp_clientlist: resource now use new terraform-plugin-framework
• resource/junos_snmp_community: resource now use new terraform-plugin-framework
  some of config errors are now sent during Plan instead of during Apply
  optional boolean attributes doesn't accept value false
  optional string attributes doesn't accept empty value
• resource/junos_snmp_v3_community: resource now use new terraform-plugin-framework
  optional string attributes doesn't accept empty value
• resource/junos_snmp_v3_usm_user:
  • resource now use new terraform-plugin-framework
    some of config errors are now sent during Plan instead of during Apply
    optional string attributes doesn't accept empty value
  • authentication_type argument accept new value: authentication-sha224, authentication-sha256, authentication-sha384 and authentication-sha512
• resource/junos_snmp_v3_vacm_accessgroup: resource now use new terraform-plugin-framework
  some of config errors are now sent during Plan instead of during Apply
  optional string attributes doesn't accept empty value
• resource/junos_snmp_v3_vacm_securitytogroup: resource now use new terraform-plugin-framework
  some of config errors are now sent during Plan instead of during Apply
• resource/junos_snmp_view: resource now use new terraform-plugin-framework