optimizations, use md5 for hash

interface/pnpm-lock.yaml

@@ -35,6 +35,9 @@ importers:
       async-validator:
         specifier: ^4.2.5
         version: 4.2.5
+      etag:
+        specifier: ^1.8.1
+        version: 1.8.1
       formidable:
         specifier: ^3.5.4
         version: 3.5.4
@@ -1552,6 +1555,10 @@ packages:
     resolution: {integrity: sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==}
     engines: {node: '>=0.10.0'}
 
+  etag@1.8.1:
+    resolution: {integrity: sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==}
+    engines: {node: '>= 0.6'}
+
   exec-buffer@3.2.0:
     resolution: {integrity: sha512-wsiD+2Tp6BWHoVv3B+5Dcx6E7u5zky+hUwOHjuH2hKSLR3dvRmX8fk8UD8uqQixHs4Wk6eDmiegVrMPjKj7wpA==}
     engines: {node: '>=4'}
@@ -4563,6 +4570,8 @@ snapshots:
 
   esutils@2.0.3: {}
 
+  etag@1.8.1: {}
+
   exec-buffer@3.2.0:
     dependencies:
       execa: 0.7.0