Allow : in the source tag and add pinecone_test as a source tag for all integration tests

[rohanshah18]

Problem

Some customers have requested to allow : in the source tag field and for all internal pinecone integration tests, add source tag as pinecone_test.

Solution

Allow : as a part of source tag and set pinecone_test as a source tag for integration test

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Infrastructure change (CI configs, etc)
• Non-code change (docs, etc)
• None of the above: (explain here)

Test Plan

Updated unit test and ran integration tests