…tion signal (#124879)

[release/10.0] Revert forwarding activation signal (#124879)

Backport of #124877 to release/10.0

/cc @janvorli

- [ ] Customer reported
- [x] Found internally

A recent change that was backported to .NET 10.0.4
(dotnet/runtime#124308) was found to cause
problems to vsdbg. That problem is caused by part of the change that was
actually additional to the fix that that change made and that is not
that important. That part of the change started to forward activation
signal to handlers registered before the coreclr. This change just
reverts that part.

- [x] Yes
- [ ] No

dotnet/runtime#124308

Local testing

Low. It just stops forwarding the signal which was the behavior until
the recent change.

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#### AI description  (iteration 1)
#### PR Classification
Revert of a previous signal forwarding change to restore the original activation signal handling behavior.

#### PR Summary
This pull request reverts modifications that unconditionally forwarded activation signals in the coreclr exception handling code, reinstating the original conditional logic.
- In `src/runtime/src/coreclr/pal/src/exception/signal.cpp`, the call to the original handler is now nested within an if-else block that checks for `SA_SIGINFO` and valid non-default signal handlers before invoking them.
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Rebrand to 10.0.5
Rebrands the 10.0.4 branch to 10.0.5, to get a last minute fix for Mac debugging.

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#### AI description  (iteration 1)
#### PR Classification
This pull request performs a rebranding update by bumping all component version numbers to 10.0.5.

#### PR Summary
The PR updates version properties across the repository to align with the new servicing release:
- `eng/Versions.props`: Updated VersionSDKMinorPatch from 4 to 5 and changed the PreReleaseVersionLabel from "preview" to "servicing".
- `src/aspnetcore/eng/Versions.props`, `src/efcore/eng/Versions.props`, `src/emsdk/eng/Versions.props`, `src/sdk/eng/Versions.props`, `src/windowsdesktop/eng/Versions.props`, `src/winforms/eng/Versions.props`, `src/wpf/eng/Versions.props`, and `src/templating/eng/Versions.props`: Bumped patch/version prefixes from 4 to 5.
- `src/sdk/src/Microsoft.CodeAnalysis.NetAnalyzers.sarif`: Updated analyzer tool versions from 10.0.104 to 10.0.105.
- `src/fsharp/eng/Versions.props`, `src/sourcelink/eng/Versions.props`, `src/symreader/eng/Versions.props`, and `src/xdt/eng/Versions.props`: Revised build/patch numbers to reflect the new version.
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Downgrade implicit versions for hotfix

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#### AI description  (iteration 1)
#### PR Classification
This pull request addresses a hotfix by downgrading the implicit version increments in the build configuration.

#### PR Summary
The pull request reduces version offsets in the build properties file to ensure that workloads remain aligned with the released version.
- In `src/sdk/eng/Versions.props`, `<VersionFeature80>` is updated from adding 21 to adding 20, and `<VersionFeature90>` is updated from adding 10 to adding 9.
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