[FIX] more invalid friend declarations

[eseiler]

Part of #3138

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Name	Status	Preview	Comments	Updated
seqan3	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Mar 30, 2023 at 11:45AM (UTC)

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (aed430b) 98.18% compared to head (33e30ac) 98.18%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #3140 +/- ## ======================================= Coverage 98.18% 98.18% ======================================= Files 276 276 Lines 12292 12292 ======================================= Hits 12069 12069 Misses 223 223 ``` | [Impacted Files](https://codecov.io/gh/seqan/seqan3/pull/3140?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=seqan) | Coverage Δ | | |---|---|---| | [...n3/alignment/matrix/detail/trace\_iterator\_base.hpp](https://codecov.io/gh/seqan/seqan3/pull/3140?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=seqan#diff-aW5jbHVkZS9zZXFhbjMvYWxpZ25tZW50L21hdHJpeC9kZXRhaWwvdHJhY2VfaXRlcmF0b3JfYmFzZS5ocHA=) | `100.00% <ø> (ø)` | | | [...eqan3/core/range/detail/random\_access\_iterator.hpp](https://codecov.io/gh/seqan/seqan3/pull/3140?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=seqan#diff-aW5jbHVkZS9zZXFhbjMvY29yZS9yYW5nZS9kZXRhaWwvcmFuZG9tX2FjY2Vzc19pdGVyYXRvci5ocHA=) | `100.00% <ø> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=seqan). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=seqan)

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