Fix Alphabet game pre-state

I accidently used the number "140" to the character "`". 140 is in
octal & it should be 96 in decimal.

op-challenger/fault/alphabet_provider.go

@@ -49,7 +49,7 @@ func (ap *AlphabetProvider) Get(i uint64) (common.Hash, error) {
 
 func (ap *AlphabetProvider) AbsolutePreState() []byte {
 	out := make([]byte, 32)
-	out[31] = 140 // ascii character 140 is "`"
+	out[31] = 96 // ascii character 96 is "`"
 	return out
 }
 

packages/contracts-bedrock/deploy-config/devnetL1.json

@@ -44,7 +44,7 @@
   "l1GenesisBlockTimestamp": "0x64935846",
   "l1StartingBlockTag": "earliest",
   "l2GenesisRegolithTimeOffset": "0x0",
-  "faultGameAbsolutePrestate": 140,
+  "faultGameAbsolutePrestate": 96,
   "faultGameMaxDepth": 4,
   "faultGameMaxDuration": 604800
 }
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