Check and fix backends for the new Spectra version

[jorainer]

If needed, add extractByIndex() for MsBackend implementations in external packages. These packages would then need to depend on Spectra version 1.15.10. This is only required if the backend extends MsBackendCached. Packages are:

• MsBackendSql
• CompoundDb
• MsBackendMgf
• MsBackendMsp
• MsBackendMassbank
• MsbackendMetaboLights
• MsBackendRawFileReader: refactor: add extractByIndex method fgcz/MsBackendRawFileReader#23
• MsBackendWeizMass
• MsBackendMS
• MsBackendSirius
• MsBackendMzVault: refactor: add extractByIndex method meowcat/MsBackendMzVault#4
• MsBackendImzML
• MsBackendAgilentCef

[jorainer]

For these packages, check if they implement a [ method that uses callNextMethod(). If so, a extractByIndex() must be implemented. Otherwise, it would still work as the extractByIndex() would dispatch to [.