feat: add 2 solc versions

Dockerfile

@@ -181,6 +181,41 @@ RUN if [ "$TARGETARCH" = "arm64" ]; then \
       git clean -d -x -f; \
     fi
 
+RUN if [ "$TARGETARCH" = "arm64" ]; then \
+      # build solc-v0.8.15
+      git checkout v0.8.15; \
+      # the compiler throws warnings when compiling this version, and the warnings are treated as errors.
+      # we disable treating the warnings as errors, unless the build doesn't succeed
+      grep -rl '\-Werror' ./cmake/EthCompilerSettings.cmake | xargs sed -i 's/\-Werror/\-Wno\-error/g'; \
+      # there is no sudo in the container, but we are under root so we do not need it
+      grep -rl 'sudo make install' ./scripts/build.sh | xargs sed -i 's/sudo make install/make install/g'; \
+      # build solc faster
+      grep -rl 'make -j2' ./scripts/build.sh | xargs sed -i 's/make -j2/make -j4/g'; \
+      ./scripts/build.sh; \
+      mv /usr/local/bin/solc /root/.solcx/solc-v0.8.15; \
+      /root/.solcx/solc-v0.8.15 --version | grep 'Version: 0.8.15+commit.e14f2714' || (echo "Incorrect solc-v0.8.15 version" && exit 1); \
+      git checkout .; \
+      git checkout develop; \
+      git clean -d -x -f; \
+    fi
+
+RUN if [ "$TARGETARCH" = "arm64" ]; then \
+     # build solc-v0.7.6
+     git checkout v0.7.6; \
+     grep -rl '\-Werror' ./cmake/EthCompilerSettings.cmake | xargs sed -i 's/\-Werror/\-Wno\-error/g'; \
+     grep -rl 'make -j2' ./scripts/build.sh | xargs sed -i 's/make -j2/make -j4/g'; \
+     grep -rl 'sudo make install' ./scripts/build.sh | xargs sed -i 's/sudo make install/make install/g'; \
+     grep -rl '#include <string>' ./liblangutil/SourceLocation.h | xargs sed -i 's/#include <string>/#include <string>\n#include <limits>/g'; \
+     grep -rl 'size_t' ./tools/yulPhaser/PairSelections.h | xargs sed -i 's/size_t/std::size_t/g'; \
+     grep -rl 'size_t' ./tools/yulPhaser/Selections.h | xargs sed -i 's/size_t/std::size_t/g'; \
+     ./scripts/build.sh; \
+     mv /usr/local/bin/solc /root/.solcx/solc-v0.7.6; \
+     /root/.solcx/solc-v0.7.6 --version | grep 'Version: 0.7.6+commit.7338295f' || (echo "Incorrect solc-v0.7.6 version" && exit 1); \
+     git checkout .; \
+     git checkout develop; \
+     git clean -d -x -f; \
+    fi
+
 RUN if [ "$TARGETARCH" = "arm64" ]; then \
       # manually install vyper
       mkdir /root/.vvm; \