Fix: Repository error handling and JSON error handling

[LordHepipud]

Fixes error handling for Icinga for Windows repositories by providing more details about occurring errors as well as properly checking the JSON-File for the repository and providing more details about JSON errors

Example:

PS> Update-Icinga;

[Error]: Failed to parse JSON object. Exception: Invalid object passed in, ':' or '}' expected. (907)
{
    "Info":  {
                 "Name":  "testing",
                 "LocalSource":  "C:\\icinga\\",
                 "RemoteSource":  "C:\\icinga\\",
                 "Created":  "2024/04/01 16:35:03",
                 "Updated":  "2024/04/01 14:37:45",
                 "RepoHash":  "07916547F4427F8D6F8893BF340C199EA3D484A92D810FE1D5C5B4E4D8D84884"
             },
    "Packages":  {
                     "agent":  [
                                   {
                                       "Hash":  "145B70227DCB8C19489B47B06B89E3BEA52657647238FFD871A07E68B06D5F70",
                                       "Location":  "agent/Icinga2-v2.11.10-x86_64.msi",
                                       "RelativePath":  true,
                                       "Version":  "2.11.10",
                                       "Snapshot":  false

                                         ^^^^^^^^^^^^^^^^^
[Error]: Failed to convert retreived content from repository "testing" with location "C:\icinga\" to JSON
[Error]: The remote host "https://icinga.example.com" send an exception response "900": "The remote name could not be resolved: 'icinga.example.com'"
[Notice]: Unable to fetch Icinga for Windows repository information for repository "linux test" from provided location. Trying different lookup by adding "ifw.repo.json" to the end of the remote path.
[Error]: The remote host "https://icinga.example.com/ifw.repo.json" send an exception response "900": "The remote name could not be resolved: 'icinga.example.com'"
[Error]: Unable to fetch data for repository "linux test" from any configured location
[Notice]: The installed version "1.13.0" of component "framework" is identical or lower than the new version "1.12.0". Use "-Force" to install anyway
[Notice]: The installed version "1.6.0" of component "mssql" is identical or lower than the new version "1.5.0". Use "-Force" to install anyway
[Notice]: No update package found for component "kickstart"
[Notice]: The installed version "1.3.0" of component "hyperv" is identical or lower than the new version "1.3.0". Use "-Force" to install anyway
[Notice]: The installed version "1.3.0" of component "inventory" is identical or lower than the new version "1.2.0". Use "-Force" to install anyway
[Notice]: The installed version "1.4.0" of component "cluster" is identical or lower than the new version "1.3.0". Use "-Force" to install anyway
[Notice]: The installed version "1.12.0" of component "plugins" is identical or lower than the new version "1.12.0". Use "-Force" to install anyway