chore: bump version to 0.6.7 (letta-ai#2321)

chore: bump version to 0.6.6 (letta-ai#2293)

chore: bump version to 0.6.5 (letta-ai#2275)

chore: bump version 0.6.4 (letta-ai#2246)

chore: bump version to 0.6.3 (letta-ai#2225)

feat: enable configuration of `response_char_limit` for tools (letta-…

…ai#2207)

chore: bump version 0.6.1 (letta-ai#2170)

chore: update lock (letta-ai#2158)

chore: bump release to 0.5.5

fix: fix `poetry.lock` to pin pydantic version (letta-ai#2076)