fix: get minimum version from crate

Refs: PyO3/pyo3#5516

Signed-off-by: Mike Fiedler <miketheman@gmail.com>

Author: miketheman

.github/workflows/test.yml

@@ -36,6 +36,8 @@ jobs:
           CARGO_TOML_CONTENT=$(tar -xzO -f "$TMP_CRATE" "pyo3-ffi-$PYO3_FFI_VERSION/Cargo.toml" 2>/dev/null || true)
           # get the supported CPython max version from the pyo3-ffi crate (from the extracted Cargo.toml)
           MAX_VERSION=$(echo "$CARGO_TOML_CONTENT" | uvx --from=toml-cli toml get --toml-path=/dev/stdin package.metadata.cpython.max-version | tr -d '"')
+          # get the supported PyPy min version
+          PYPY_MIN=$(echo "$CARGO_TOML_CONTENT" | uvx --from=toml-cli toml get --toml-path=/dev/stdin package.metadata.pypy.min-version | tr -d '"')
           # get the supported PyPy max version
           PYPY_MAX=$(echo "$CARGO_TOML_CONTENT" | uvx --from=toml-cli toml get --toml-path=/dev/stdin package.metadata.pypy.max-version | tr -d '"')
           # gather the list once and derive CPython and (optional) PyPy sets from it
@@ -52,7 +54,7 @@ jobs:
                  (.v.major < $maxv.major or (.v.major == $maxv.major and .v.minor <= $maxv.minor)))
               ))
             | map("\(.v.major).\(.v.minor)\(if .t=="freethreaded" then "t" else "" end)")')
-          PYPY_VERSIONS=$(echo "$LIST" | jq -c --arg min "$MIN_VERSION" --arg max "$PYPY_MAX" '
+          PYPY_VERSIONS=$(echo "$LIST" | jq -c --arg min "$PYPY_MIN" --arg max "$PYPY_MAX" '
             ($min | split(".") | {major: .[0]|tonumber, minor: .[1]|tonumber}) as $minv |
             ($max | split(".") | {major: .[0]|tonumber, minor: .[1]|tonumber}) as $maxv |
             [.[] | {v:.version_parts, t:.variant, impl:.implementation}]