[COMPLIANCE] License update (hashicorp#18218)

Author: hashicorp-copywrite[bot]

.copywrite.hcl

@@ -7,6 +7,8 @@ project {
   header_ignore = [
     "command/asset/*.hcl",
     "command/agent/bindata_assetfs.go",
+    # licensed under MPL - ignoring for now until the copywrite tool can support
+    # multiple licenses per repo.
     "api/**",
     "drivers/shared/**",
     "plugins/**",

LICENSE

@@ -4,7 +4,7 @@ License text copyright (c) 2020 MariaDB Corporation Ab, All Rights Reserved.
 Parameters
 
 Licensor:             HashiCorp, Inc.
-Licensed Work:        The Licensed Work is (c) 2023 HashiCorp, Inc.
+Licensed Work:        Nomad 1.7.0. The Licensed Work is (c) 2023 HashiCorp, Inc.
 Additional Use Grant: You may make production use of the Licensed Work,
                       provided such use does not include offering the Licensed Work
                       to third parties on a hosted or embedded basis which is