Update packages.json & build-matrix.html

docs/build-matrix.html

@@ -719,7 +719,7 @@ feel free to submit a pull request.
 
 <tr>
  <th class="row">gc</th>
- <td>7.6.0</td>
+ <td>7.4.6</td>
       <td class="supported">&#x2713;</td>
       <td class="supported">&#x2713;</td>
       <td class="supported">&#x2713;</td>
@@ -1489,7 +1489,7 @@ feel free to submit a pull request.
 
 <tr>
  <th class="row">libass</th>
- <td>0.13.1</td>
+ <td>0.14.0</td>
       <td class="supported">&#x2713;</td>
       <td class="supported">&#x2713;</td>
       <td class="supported">&#x2713;</td>

docs/packages.json

@@ -67,7 +67,7 @@
     "freexl": {"version": "1.0.3", "website": "https://www.gaia-gis.it/fossil/freexl/index", "description": "FreeXL"},
     "fribidi": {"version": "0.19.6", "website": "https://fribidi.org/", "description": "FriBidi"},
     "ftgl": {"version": "2.1.3~rc5", "website": "https://sourceforge.net/projects/ftgl/", "description": ""},
-    "gc": {"version": "7.6.0", "website": "http://www.hpl.hp.com/personal/Hans_Boehm/gc/", "description": ""},
+    "gc": {"version": "7.4.6", "website": "https://github.com/ivmai/bdwgc", "description": ""},
     "gcc": {"version": "5.4.0", "website": "https://gcc.gnu.org/", "description": "GCC"},
     "gd": {"version": "2.1.0", "website": "https://libgd.github.io/", "description": "GD  (without support for xpm)"},
     "gdal": {"version": "2.2.2", "website": "http://www.gdal.org/", "description": "GDAL"},
@@ -144,7 +144,7 @@
     "levmar": {"version": "2.6", "website": "https://www.ics.forth.gr/~lourakis/levmar", "description": ""},
     "libaacs": {"version": "0.8.1", "website": "https://www.videolan.org/developers/libaacs.html", "description": ""},
     "libarchive": {"version": "3.3.2", "website": "https://www.libarchive.org/", "description": "Libarchive"},
-    "libass": {"version": "0.13.1", "website": "https://code.google.com/p/libass/", "description": ""},
+    "libass": {"version": "0.14.0", "website": "https://code.google.com/p/libass/", "description": ""},
     "libatomic_ops": {"version": "7.4.8", "website": "https://github.com/ivmai/libatomic_ops", "description": "The atomic_ops project (Atomic memory update operations portable implementation)"},
     "libbluray": {"version": "0.9.2", "website": "https://www.videolan.org/developers/libbluray.html", "description": ""},
     "libbs2b": {"version": "3.1.0", "website": "https://bs2b.sourceforge.io/", "description": "Bauer Stereophonic-to-Binaural library"},