v0.7.0

v0.7.0 contains the following changes over v0.6.0:

• The code execution tool will now display the code it has run as a citation. Thanks to @xiaopa233 for contributing this feature.
• The code execution tool will now internally return the code that it has run. This may help the model using the tool to better interpret the result of the code execution. Thanks to @xiaopa233 for contributing this feature.
• Code execution sandboxes now run with the same timezone setting as the Open WebUI installation. Thanks to @jedwards1230 for contributing this feature.
• Both the code execution tool and function now include update checking functionality (but not auto-update). This is turned on by default, but may be disabled using a valve or an environment variable; see documentation.
• The code execution tool and function are now encoded as ASCII files, which fixes issue #20 related to using them in Open WebUI installations that do not use a UTF-8 system encoding.
• Small compatibility fix for some systems where /proc/self/mountinfo contains more than 10 fields per line.