Ensure min password requirements are always met for Azure SQL resources

[davesee]

Current password generation may fail if one upper, lower, or numeric character is not randomly chosen in:
resource "random_password" "password" {
length = 16
special = true
override_special = "_%@"
}

Found here:

terratest/examples/azure/terraform-azure-mysqldb-example/main.tf

Line 35 in f4b4e17

override_special = "_%@"

terratest/examples/azure/terraform-azure-sqldb-example/main.tf

Line 33 in f4b4e17

override_special = "_%@"

Update to:
resource "random_password" "password" {
length = 16
override_special = "-_%@"
min_upper = "1"
min_lower = "1"
min_numeric = "1"
min_special = "1"
}