Report PPS Type in KVP / Azure Heath Reports

[peytonr18]

In the build_success_health_report() and build_failure_health_report() methods, we build the formatted health report for ingestion by Azure. Instead of hardcoding the PPS value, assign it using the extended IMDS call.

Initial Request:
"Can you file issue to correctly report the pps_type? - this can be retrieved from the extended IMDS call (which we're already using)"

Originally posted by @anhvoms in #188 (comment)

This may require updating the Compute to something like this--

#[derive(Debug, Deserialize, PartialEq, Clone)]
pub struct Compute {
    #[serde(rename = "osProfile")]
    pub os_profile: OsProfile,

    #[serde(rename = "publicKeys")]
    pub public_keys: Vec<PublicKeys>,

    #[serde(rename = "ppsType")]
    pub pps_type: Option<String>,
}