Cantina node energy costs adjusted: Cantina 9 raised to 20, Cantina 8 unchanged

Two clarifying replies addressed energy economy changes spotted in the screenshots accompanying today's forum posts.

• Cantina 9 node energy cost has been increased to 20 energy per attempt
• Cantina 8 energy cost is unchanged at 16 energy
• Signal Data farming remains on Cantina 8, so the new Cantina 9 cost does not affect Signal Data routines
• The Cantina 9 bump appears to be part of a broader "inflation" pass on cantina costs that players noticed in the screenshots