chore: fixed all references to the renamed images in the python file; restore workflow to @v0

Author: TingwenZhang

.github/workflows/check-news-item.yml

@@ -7,6 +7,6 @@ on:
 
 jobs:
   check-news-item:
-    uses: Billingegroup/release-scripts/.github/workflows/_check-news-item.yml
+    uses: Billingegroup/release-scripts/.github/workflows/_check-news-item.yml@v0
     with:
       project: diffpy.pdfgui

src/diffpy/pdfgui/gui/aboutdialog.py

@@ -128,13 +128,13 @@ def __init__(self, *args, **kwds):
         self.label_svnrevision.SetLabel(revision)
 
         # set bitmaps for logo buttons
-        logo = wx.Bitmap(iconpath("nsf_logo.png"))
+        logo = wx.Bitmap(iconpath("nsf-logo.png"))
         self.bitmap_button_nsf.SetBitmapLabel(logo)
-        logo = wx.Bitmap(iconpath("danse_logo.png"))
+        logo = wx.Bitmap(iconpath("danse-logo.png"))
         self.bitmap_button_danse.SetBitmapLabel(logo)
-        logo = wx.Bitmap(iconpath("msu_logo.png"))
+        logo = wx.Bitmap(iconpath("msu-logo.png"))
         self.bitmap_button_msu.SetBitmapLabel(logo)
-        logo = wx.Bitmap(iconpath("columbia_logo.png"))
+        logo = wx.Bitmap(iconpath("columbia-logo.png"))
         self.bitmap_button_columbia.SetBitmapLabel(logo)
 
         # resize dialog window to fit version number nicely