Update boto3 to 1.9.243 (#12543)

Update boto3 to 1.9.243

requirements/prod.txt

@@ -106,9 +106,9 @@ billiard==3.6.0.0 \
 bleach==3.1.0 \
     --hash=sha256:213336e49e102af26d9cde77dd2d0397afabc5a6bf2fed985dc35b5d1e285a16 \
     --hash=sha256:3fdf7f77adcf649c9911387df51254b813185e32b2c6619f690b593a617e19fa
-boto3==1.9.242 \
-    --hash=sha256:4189e1ffed768bd0efd754a0abedebce19495ba2aa6b2f5e20f29ba80f81f9cb \
-    --hash=sha256:fa4e28166922feeb9b7b56134c1acc817a1bca36284a0035bc08a3dab1853a9f
+boto3==1.9.243 \
+    --hash=sha256:404acbecef8f4912f18312fcfaffe7eba7f10b3b7adf7853bdba59cdf2275ebb \
+    --hash=sha256:c6e5a7e4548ce7586c354ff633f2a66ba3c471d15a8ae6a30f873122ab04e1cf
 celery==4.3.0 \
     --hash=sha256:4c4532aa683f170f40bd76f928b70bc06ff171a959e06e71bf35f2f9d6031ef9 \
     --hash=sha256:528e56767ae7e43a16cfef24ee1062491f5754368d38fcfffa861cdb9ef219be