exp show: cli table fails to parse numeric columns as expected

Bug Report

Description

The default table format generated by dvc exp show fails to render version numbers like 2.50.0 as columns.

Reproduce

Clone https://github.com/iterative/analytics/tree/clean (note the clean branch) and run dvc exp show. None of the version number columns show (they do get rendered in other output formats like --md/--json`).

Environment information

Output of dvc doctor:

$ dvc doctor
DVC version: 2.55.1.dev20+g2a04263f0
------------------------------------
Platform: Python 3.10.10 on macOS-13.2.1-arm64-arm-64bit
Subprojects:
        dvc_data = 0.47.2
        dvc_objects = 0.21.1
        dvc_render = 0.3.1
        dvc_task = 0.2.1
        scmrepo = 1.0.2
Supports:
        azure (adlfs = 2023.1.0, knack = 0.10.1, azure-identity = 1.12.0),
        gdrive (pydrive2 = 1.15.3),
        gs (gcsfs = 2022.11.0),
        hdfs (fsspec = 2022.11.0, pyarrow = 11.0.0),
        http (aiohttp = 3.8.4, aiohttp-retry = 2.8.3),
        https (aiohttp = 3.8.4, aiohttp-retry = 2.8.3),
        oss (ossfs = 2021.8.0),
        s3 (s3fs = 2022.11.0, boto3 = 1.24.59),
        ssh (sshfs = 2023.4.1),
        webdav (webdav4 = 0.9.8),
        webdavs (webdav4 = 0.9.8),
        webhdfs (fsspec = 2022.11.0)
Config:
        Global: /Users/dave/Library/Application Support/dvc
        System: /Library/Application Support/dvc
Cache types: reflink, hardlink, symlink
Cache directory: apfs on /dev/disk3s1s1
Caches: local, s3
Remotes: s3
Workspace directory: apfs on /dev/disk3s1s1
Repo: dvc, git
Repo.site_cache_dir: /Library/Caches/dvc/repo/7f5d6fecd9ab2f28d386765a5eacb03d

Start by reproducing dvc exp show on the analytics repository's clean branch and compare the default table with --md and --json, where the version columns appear. Trace the CLI table-rendering path and verify that values such as 2.50.0 are retained as columns; done means those columns render in the default output without regressing the other formats.