chore: update bench results for 2.3.0

Author: jacobcreech

bench/BINARY_SIZE.md

@@ -14,14 +14,16 @@ The programs and their tests are located in [/tests/bench](https://github.com/co
 
 ## [Unreleased]
 
-Solana version: 2.1.0
+Solana version: 2.3.0
 
 | Program | Binary Size | -                      |
 | ------- | ----------- | ---------------------- |
 | bench   | 1,126,840   | 🔴 **+84,912 (8.15%)** |
 
 ### Notable changes
 
+- Upgrade to Solana `2.3.0`. This upgrade increased the binary size by 8.15% (84912 bytes) ([#3967](https://github.com/solana-foundation/anchor/pull/3967)).
+
 ---
 
 ## [0.31.1]

bench/COMPUTE_UNITS.md

@@ -14,7 +14,7 @@ The programs and their tests are located in [/tests/bench](https://github.com/co
 
 ## [Unreleased]
 
-Solana version: 2.1.0
+Solana version: 2.3.0
 
 | Instruction                 | Compute Units | -                      |
 | --------------------------- | ------------- | ---------------------- |

bench/STACK_MEMORY.md

@@ -14,7 +14,7 @@ The programs and their tests are located in [/tests/bench](https://github.com/co
 
 ## [Unreleased]
 
-Solana version: 2.1.0
+Solana version: 2.3.0
 
 | Instruction                    | Stack Memory | -                  |
 | ------------------------------ | ------------ | ------------------ |