Update raven from 6.9.0 to 6.10.0

requirements/prod_common.txt

@@ -327,9 +327,9 @@ python-dateutil==2.7.5 \
 pytz==2018.7 \
     --hash=sha256:8e0f8568c118d3077b46be7d654cc8167fa916092e28320cde048e54bfc9f1e6 \
     --hash=sha256:31cb35c89bd7d333cd32c5f278fca91b523b0834369e757f4c5641ea252236ca
-raven==6.9.0 \
-    --hash=sha256:95f44f3ea2c1b176d5450df4becdb96c15bf2632888f9ab193e9dd22300ce46a \
-    --hash=sha256:3fd787d19ebb49919268f06f19310e8112d619ef364f7989246fc8753d469888
+raven==6.10.0 \
+    --hash=sha256:44a13f87670836e153951af9a3c80405d36b43097db869a36e92809673692ce4 \
+    --hash=sha256:3fa6de6efa2493a7c827472e984ce9b020797d0da16f1db67197bcc23c8fae54
 # rdflib is required by amo-validator
 rdflib==3.4.0 \
     --hash=sha256:78d5f11a7001661d7637f9e61554a5f8971e197f3f6d17ba5e4039b0668116cf # pyup: ==3.4.0