Update flow to v0.148.0 (#6089)

Author: Will Binns-Smith

.flowconfig

@@ -38,4 +38,4 @@ untyped-import
 untyped-type-import
 
 [version]
-0.146.0
+0.148.0

package.json

@@ -39,7 +39,7 @@
     "cross-env": "^7.0.0",
     "doctoc": "^1.4.0",
     "eslint": "^7.20.0",
-    "flow-bin": "0.146.0",
+    "flow-bin": "0.148.0",
     "gulp": "^4.0.2",
     "gulp-babel": "^8.0.0",
     "husky": "^4.2.5",

yarn.lock

@@ -6296,10 +6296,10 @@ flatten@^1.0.2:
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.3.tgz#c1283ac9f27b368abc1e36d1ff7b04501a30356b"
   integrity sha512-dVsPA/UwQ8+2uoFe5GHtiBMu48dWLTdsuEd7CKGlZlD78r1TTWBvDuFaFGKCo/ZfEr95Uk56vZoX86OsHkUeIg==
 
-flow-bin@0.146.0:
-  version "0.146.0"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.146.0.tgz#fafa002663a0e13bf3c08c3972dd93d68289ccc6"
-  integrity sha512-TP8eCwltqc7fo6ad5klgsrZ2veZIK2qM1vHf1A/cnXTStPh8hLAz1cOXmlQIFZR/7fjSMI39TS3CgF6M/HUhAw==
+flow-bin@0.148.0:
+  version "0.148.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.148.0.tgz#1d264606dbb4d6e6070cc98a775e21dcd64e6890"
+  integrity sha512-7Cx6BUm8UAlbqtYJNYXdMrh900MQhNV+SjtBxZuWN7UmlVG4tIRNzNLEOjNnj2DN2vcL1wfI5IlSUXnws/QCEw==
 
 flush-write-stream@^1.0.0, flush-write-stream@^1.0.2:
   version "1.1.1"