v1.38.1

Plots v1.38.1

Diff since v1.38.0

Closed issues:

• Looking into compilation invalidations during using Plots (#2676)
• Saving shrinked version of color bar in heatmap leads to saving the unshrinked version [BUG] (#4605)

Merged pull requests:

• Delete duplicated :markercolor document for scatter (#4607) (@MapMaths)
• Gaston: Int32 / Int64 (#4609) (@t-bltg)
• enable more precompilation on Windows (#4617) (@KristofferC)