Revert "install slither from commit (#3651)"

This reverts commit b979d861.

.changeset/slow-stingrays-rescue.md

----
-'@eth-optimism/ci-builder': patch
----
-
-Install slither from a specific commit hash

ops/docker/ci-builder/Dockerfile

@@ -48,19 +48,12 @@ RUN apt-get update && \
   apt-get install -y nodejs && \
   npm i -g yarn && \
   npm i -g depcheck && \
+  pip install slither-analyzer && \
   go install gotest.tools/gotestsum@latest && \
   curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.48.0 && \
   curl -fLSs https://raw.githubusercontent.com/CircleCI-Public/circleci-cli/master/install.sh | bash && \
   chmod +x /usr/local/bin/check-changed
 
-# Install a specific version of slither. The current release does not work with our
-# forge test contracts.
-WORKDIR /opt
-RUN git clone https://github.com/crytic/slither && \
-    cd slither && \
-    git checkout 90d13cd3883404a86ef4b3dd6af4d5c234e69a54 && \
-    python3 setup.py install
-
 RUN echo "downloading solidity compilers" && \
   curl -o solc-linux-amd64-v0.5.17+commit.d19bba13 -sL https://binaries.soliditylang.org/linux-amd64/solc-linux-amd64-v0.5.17+commit.d19bba13 && \
   curl -o solc-linux-amd64-v0.8.9+commit.e5eed63a -sL https://binaries.soliditylang.org/linux-amd64/solc-linux-amd64-v0.8.9+commit.e5eed63a  && \