Fixes #1557

The assembly file version was incorrectly set to the same as
`<AssemblyVersion>`, which is fixed to the major version for strong
naming.

### Changes
- Explicitly configure `<FileVersion>` to match the nuget package
version

Replace conditional with environment checks.

As discussed in #1587, these are supposed to go away in `v6`

…te] (#1593)

Making the `Min` / `Max` of an `IEnumerable` and their selector
overloads `[Obsolete]` in `v5` (to be removed in `v6`).

…nsions (v5) (#1610)

- `IQuantity`: deprecating the `Dimensions` property in favor of
`QuantityInfo.BaseDimensions`
- `TQuantity`: deprecating the `Dimensions` property in favor of
`TQuantity.BaseDimensions`

## Motivation

Backport of #1682 for the v5 maintenance branch.

Issue #1663 reports that the generated abbreviations for MolarFlow
per-hour units are shifted by one kilo prefix:

- `MolarFlowUnit.MolePerHour` formats/parses as `kmol/h`
- `MolarFlowUnit.KilomolePerHour` formats/parses as `kkmol/h`

The root cause is that `MolePerHour` has `Prefixes: [ "Kilo" ]`, but its
base abbreviation in `MolarFlow.json` was already written as `kmol/h`.
The prefix generator then prepended another `k` for the generated
`KilomolePerHour` unit.

## Changes

- Change `MolePerHour` abbreviation from `kmol/h` to `mol/h`.
- Regenerate MolarFlow resources and generated tests.
- Generated abbreviations now match the other molar-flow units:
  - `MolePerHour`: `mol/h`
  - `KilomolePerHour`: `kmol/h`

## Validation

- `dotnet run --project CodeGen -p:NuGetAudit=false`
- `dotnet test UnitsNet.Tests -f net48 --filter
"FullyQualifiedName~MolarFlowTests" -p:NuGetAudit=false`
- `dotnet test UnitsNet.Tests -f net9.0 -p:NuGetAudit=false`

Note: plain restore/codegen on this maintenance branch is currently
blocked by an unrelated NuGet audit warning for `NuGet.Protocol` 6.12.1,
so validation used `NuGetAudit=false` to avoid changing dependencies in
this bugfix PR.

Refs #1663.