Switch to date based versioning scheme

Since no new tags are created for releases the version has been frozen for some
time, with only the commit hash changing.

Versions based on the latest commit date make it much easier to identify them.

src/invidious.cr

@@ -64,7 +64,7 @@ HTTP_CHUNK_SIZE            = 10485760 # ~10MB
 
 CURRENT_BRANCH  = {{ "#{`git branch | sed -n '/* /s///p'`.strip}" }}
 CURRENT_COMMIT  = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit`.strip}" }}
-CURRENT_VERSION = {{ "#{`git describe --tags --abbrev=0`.strip}" }}
+CURRENT_VERSION = {{ "#{`git log -1 --format=%cs | sed s/-/./g`.strip}" }}
 
 # This is used to determine the `?v=` on the end of file URLs (for cache busting). We
 # only need to expire modified assets, so we can use this to find the last commit that changes