`net-snmp` should map to SPDX license `Net-SNMP`

### Description

At [LicenseDB](https://scancode-licensedb.aboutcode.org/) and in https://scancode-licensedb.aboutcode.org/index.json, `net-snmp` maps to `LicenseRef-scancode-net-snmp`. It includes an `other_spdx_license_keys` with the expected SPDX license `Net-SNMP`.

### Actual

Excerpt from https://scancode-licensedb.aboutcode.org/index.json,
```
{
"license_key": "net-snmp",
"category": "Permissive",
"spdx_license_key": "LicenseRef-scancode-net-snmp",
"other_spdx_license_keys": [
"Net-SNMP"
],
"is_exception": false,
"is_deprecated": false,
"json": "net-snmp.json",
"yaml": "net-snmp.yml",
"html": "net-snmp.html",
"license": "net-snmp.LICENSE"
},
```

### Expected

Excerpt from https://scancode-licensedb.aboutcode.org/index.json,
```
{
"license_key": "net-snmp",
"category": "Permissive",
"spdx_license_key": "Net-SNMP",
"other_spdx_license_keys": [],
"is_exception": false,
"is_deprecated": false,
"json": "net-snmp.json",
"yaml": "net-snmp.yml",
"html": "net-snmp.html",
"license": "net-snmp.LICENSE"
},
```