dockerimg: update tests for last commit
diff --git a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
index 8ea2cdb..0fda28c 100644
--- a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/boldsoftware/sketch:3a03b430af3cabf3415d263b7803b311
+FROM ghcr.io/boldsoftware/sketch:f5b4ebd9ca15d3dbd2cd08e6e7ab9548
 
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
@@ -7,12 +7,23 @@
     git config --global user.name "$GIT_USER_NAME" && \
     git config --global http.postBuffer 524288000
 
-LABEL sketch_context="f6830cad46a9b0d71acb50ff81972f4494fe1a9d90869544b692bc26dd43adfb"
+LABEL sketch_context="1f68d38855871143c58b80c7f052e42141dd82d9a1214074ee734f758f463b8a"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-# No additional setup required for this simple Go test project
+# Switch to lenient shell so we are more likely to get past failing extra_cmds.
+SHELL ["/bin/bash", "-uo", "pipefail", "-c"]
+
+# Install common development tools
+RUN go install github.com/rakyll/gotest@latest || true
+RUN go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest || true
+
+# If there's a requirements.txt file for Python deps, install them (continue on error)
+RUN if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi
+
+# Switch back to strict shell after extra_cmds.
+SHELL ["/bin/bash", "-euxo", "pipefail", "-c"]
 
 CMD ["/bin/sketch"]