Limit number of python versions (#1458)

Author: franciszekjob

.github/workflows/checks.yml

@@ -139,7 +139,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+        python-version: [ "3.8", "3.12" ]
     env:
       LEDGER_PROXY_ADDRESS: 127.0.0.1
       LEDGER_PROXY_PORT: 9999
@@ -316,7 +316,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+        python-version: [ "3.8", "3.12" ]
     env:
       SEPOLIA_RPC_URL: ${{ secrets.SEPOLIA_RPC_URL }}
     steps:
@@ -398,7 +398,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+        python-version: [ "3.8", "3.12" ]
     steps:
       - uses: actions/checkout@v4
 
@@ -462,7 +462,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+        python-version: [ "3.8", "3.12" ]
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@dc6353516c68da0f06325f42ad880f76a5e77ec9