v1.38.15

Plots v1.38.15

Diff since v1.38.14

Closed issues:

• [BUG] using vline() with DateTime as x-axis screws up the y-axis labels (#4660)
• [BUG] Incorrect axes range when using bar with orientation = :horizontal (#4756)
• [BUG] Unitful heatmap fails when using colorbar_title (#4758)

Merged pull requests:

• account for missing letter (#4759) (@BeastyBlacksmith)
• Fix vline formatting (#4760) (@BeastyBlacksmith)