[llvm] [Nomination] Add HighTec representatives to the Security Group (PR #124142)

[Andras Gemes via llvm-commits]

gemesa wrote:

Hi all,

Thank you for taking the time to look at our nomination. In addition to the commits @yroux mentioned, my colleagues often use their private email addresses when submitting PRs. You can list some of them with:
```
git log --pretty=format:"%H %an <%ae>" | grep "dfszabo"
```
```
git log --pretty=format:"%H %an <%ae>" | grep "spaits"
```
```
git log --pretty=format:"%H %an <%ae>" | grep "futog"
```
I will ask them to confirm here that they are indeed HighTec employees.

You wont find any upstream contributions by me, as I have worked only in our internal repositories so far (and mainly on the Rust frontend).

Let me know if I need to clarify anything else.

https://github.com/llvm/llvm-project/pull/124142