Check on oldrel-2 [skip ci]

Due to release of R 4.5.0, R 4.3.3 is now oldrel-2.

Author: remlapmot

.github/workflows/check-full.yaml

@@ -32,6 +32,7 @@ jobs:
           - {os: windows-latest, r: 'release'}
           - {os: ubuntu-latest,   r: 'release'}
           - {os: ubuntu-latest,   r: 'oldrel-1'}
+          - {os: ubuntu-latest,   r: 'oldrel-2'}
           - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,   r: '4.3.2'}
           - {os: macos-13, r: 'release'}