Update Nethermin status (#179)

Author: benaadams

spec/implementation_matrix.md

@@ -44,9 +44,9 @@
 |------------------------------------------------------|--------|----------|--------------|----------|--------|--------------|--------|--------|
 | \[\*\] [EEST] `eip7692@v2.0.0` - `state_tests`       | ✅     |          |              | ✅       | ✅     | ✅           | ✅     |        |
 | \[\*\] [EEST] `eip7692@v2.0.0` - `eof_tests`         | ✅     |          |              | ✅       | ✅     | ✅           | ✅     |        |
-| [EEST] `eip7692@v2.1.0` - `state_tests`              |        |          |              | ✅       |        |              |        |        |
-| [EEST] `eip7692@v2.1.0` - `blockchain_tests`         |        |          |              | ✅       |        |              |        |        |
-| [EEST] `eip7692@v2.1.0` - `eof_tests`                |        |          |              | ✅       |        |              |        |        |
+| [EEST] `eip7692@v2.1.0` - `state_tests`              |        |          |              | ✅       |        | ❓            |        |        |
+| [EEST] `eip7692@v2.1.0` - `blockchain_tests`         |        |          |              | ✅       |        | ❓            |        |        |
+| [EEST] `eip7692@v2.1.0` - `eof_tests`                |        |          |              | ✅       |        | ✅            |        |        |
 | \[\*\] [tests] `v14.1` - `EIPTests/StateTests/stEOF` | ✅     |          |              | ✅       |        |              | ✅     | ✅     |
 | [tests] `v14.1` - `EOFTests`                         | ✅     |          |              | ✅       |        |              | ✅     | ✅     |
 | [`evmone` exported] `v0.13.0` - `state_tests`        | ❓     |          |              | ✅       |        |              | ✅     | ✅     |