remove debugging and add C.UTF-8 locale

Author: greymd

.github/workflows/test.yml

@@ -43,11 +43,10 @@ jobs:
             cargo build --verbose --features oniguruma --release --target ${{ matrix.target }}
           fi
           mv target/${{matrix.target}}/release/teip target/release
-      - name: Setup upterm session
-        uses: lhotari/action-upterm@v1
       - name: Run tests
         timeout-minutes: 10
         run: |
+          export LANG=C.UTF-8 LC_ALL=C.UTF-8
           cargo test --verbose --features oniguruma
           bash tests/test_large_file.sh
           bash tests/test_long_line.sh