Payload SHA256 digest: NOTFOUND

EL8 FIPS enabled OS cannot readily install packages needed for extensions due to missing SHA256 digest.

Can be validated with the following from an EL8 FIPS OS:
```
rpm -Kv
```

Validated all packages (omi, omsagent, omsconfig, and scx) extract from the tar file provided by the omsagent-1.12.15-0.universal.x64.sh script downloaded via the Microsoft.Azure.LinuxDiagnostic-3.0.135 extension.

The output from the rpm -Kv command is as follows for each of the four rpms:
```
Header SHA1 digest: OK
Payload SHA256 digest: NOTFOUND
MD5 digest: NOTFOUND
```

The RedHat solution is not acceptable and also not automatable for these extension installs. For reference, the solution mentioned is located here: https://access.redhat.com/solutions/4460971