fix: update solidity version

foundry.toml

@@ -9,7 +9,7 @@ multiline_func_header = 'params_first'
 sort_imports = true
 
 [profile.default]
-solc_version = '0.8.19'
+solc_version = '0.8.23'
 src = 'solidity'
 test = 'solidity/test'
 out = 'out'

solidity/contracts/Greeter.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity =0.8.19;
+pragma solidity =0.8.23;
 
 import {IGreeter} from 'interfaces/IGreeter.sol';
 import {IERC20} from 'isolmate/interfaces/tokens/IERC20.sol';

solidity/interfaces/IGreeter.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity =0.8.19;
+pragma solidity =0.8.23;
 
 import {IERC20} from 'isolmate/interfaces/tokens/IERC20.sol';
 

solidity/scripts/Deploy.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity =0.8.19;
+pragma solidity =0.8.23;
 
 import {Greeter} from 'contracts/Greeter.sol';
 import {Script} from 'forge-std/Script.sol';

solidity/test/integration/Greeter.t.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity =0.8.19;
+pragma solidity =0.8.23;
 
 import {IntegrationBase} from 'test/integration/IntegrationBase.sol';
 

solidity/test/integration/IntegrationBase.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity =0.8.19;
+pragma solidity =0.8.23;
 
 import {Greeter, IGreeter} from 'contracts/Greeter.sol';
 import {Test} from 'forge-std/Test.sol';

solidity/test/unit/Greeter.t.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity =0.8.19;
+pragma solidity =0.8.23;
 
 import {Greeter, IGreeter} from 'contracts/Greeter.sol';
 import {Test} from 'forge-std/Test.sol';