python3-ecdsa: deselect test with upstream PEM-fixture bug

test_SigningKey_from_pem_pkcs8v2_EdDSA embeds its PEM fixture as an
indented triple-quoted string, but der.unpem() only recognizes
"-----BEGIN/END-----" markers with no leading whitespace; the indented
END marker gets swallowed into the base64 payload instead of being
stripped, so it fails with "Incorrect padding" regardless of
environment. Upstream test-authoring bug in 0.19.2, not a packaging
issue.

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-ecdsa_0.19.2.bb

@@ -17,6 +17,8 @@ RDEPENDS:${PN}-ptest += " \
 do_install_ptest:append () {
 	install -d ${D}${PTEST_PATH}/tests
 	cp -rf ${S}/src/ecdsa/* ${D}${PTEST_PATH}/tests/
+	sed -i -e "/--automake/ s/$/ -k 'not test_SigningKey_from_pem_pkcs8v2_EdDSA'/" \
+		${D}${PTEST_PATH}/run-ptest
 }
 
 RDEPENDS:${PN} += " \