ci: improve caching

Author: henryborchers

vars/runJenkinsPipeline.groovy

@@ -225,7 +225,7 @@ def call(){
                                                              try{
                                                                  envs = sh(
                                                                      label: 'Get tox environments',
-                                                                     script: 'uv run --only-group=tox --isolated --frozen --quiet tox list -d --no-desc',
+                                                                     script: 'uv run --only-group=tox --isolated --frozen --quiet tox list -d --no-desc --tmpfs /ci_tmp:exec -e TOX_WORK_DIR=/ci_tmp/tox ',
                                                                      returnStdout: true,
                                                                  ).trim().split('\n')
                                                              } catch (e){
@@ -254,7 +254,7 @@ def call(){
                                                          node('docker && linux'){
                                                             checkout scm
                                                             try{
-                                                                docker.image('ghcr.io/astral-sh/uv:debian').inside('--mount source=python-tmp-packageValidation,target=/tmp --tmpfs /.local/share:exec --tmpfs /.local/bin:exec'){
+                                                                docker.image('ghcr.io/astral-sh/uv:debian').inside('--mount source=python-tmp-packageValidation,target=/tmp --tmpfs /.local/share:exec --tmpfs /.local/bin:exec --tmpfs /ci_tmp:exec -e TOX_WORK_DIR=/ci_tmp/tox -e UV_PROJECT_ENVIRONMENT=/ci_tmp/venv'){
                                                                     try{
                                                                         sh( label: 'Running Tox',
                                                                             script: """uv python install cpython-${version}
@@ -344,14 +344,6 @@ def call(){
                                                                                 }
                                                                             }
                                                                         }
-                                                                    } finally{
-                                                                        cleanWs(
-                                                                            patterns: [
-                                                                                [pattern: 'venv/', type: 'INCLUDE'],
-                                                                                [pattern: '.tox', type: 'INCLUDE'],
-                                                                                [pattern: '**/__pycache__/', type: 'INCLUDE'],
-                                                                            ]
-                                                                        )
                                                                     }
                                                                 }
                                                             } finally {
@@ -469,6 +461,7 @@ def call(){
                                                             .inside(
                                                                 isUnix() ?
                                                                     '--mount source=python-tmp-packageValidation,target=/tmp' +
+                                                                    ' --tmpfs /.local/bin:exec' +
                                                                     ' --tmpfs /.local/share:exec'
                                                                 :
                                                                     "--mount type=volume,source=uv_python_cache_dir,target=C:\\Users\\ContainerUser\\Documents\\uvpython" +