fix(tests): force install solidity 0.8.19 through svm (#5221)

* fix(tests): force install 0.8.19 through svm

* chore: use installed version

* chore: also install 0.8.20

Author: Evalir

.github/workflows/test.yml

@@ -47,6 +47,19 @@ jobs:
               with:
                   name: ${{ matrix.archive.name }}
                   path: ${{ matrix.archive.file }}
+    install-svm-solc:
+        name: install svm and solidity / ${{ matrix.job.name }}
+        runs-on: ubuntu-latest
+        timeout-minutes: 30
+        steps:
+          - name: Install svm
+            run: cargo install svm-rs
+          - name: Install Solidity 0.8.19
+            run: svm install 0.8.19
+          - name: Install Solidity 0.8.20
+            run: svm install 0.8.20
+          - name: Use Solidity 0.8.19
+            run: svm use 0.8.19
 
     unit:
         name: unit tests / ${{ matrix.job.name }}