Revert "Bump assets/syntaxes/02_Extra/Docker from 0f6b7bc to c001fb2 (#3024)"

[keith-hall]

This reverts commit 3838766 (#3024) to fix #3446.

[HirschBerge]

Is there a reason this isn't merged?

[keith-hall]

Two reasons:

• I wasn't able to come up with a test which proves that bat cache fails before this change and succeeds afterwards - it seems like it was always succeeding, and the Dockerfile highlighting seems fine... Maybe I need to try with a fresh clone in case that makes any difference.
• there are no reviews on this PR yet. Likely waiting for regression tests lol.

Feel free to try building bat from source with this PR's changes and share your experience.

[Enselic]

Feel free to merge this without review if you know it's the right thing to do (and it seems to be the right thing).

[HirschBerge]

Not Sure I"m really grasping the whole submodules of this repo, but I think I figured out checking out the proper branch and submodules, etc. Not sure if I tested properly though

cargo run --release -- cache --build --blank
Some referenced contexts could not be found!
- Syntax 'Dockerfile (with bash)' with scope 'source.dockerfile.bash' has unresolved context reference ByScope { scope: <source.json>, sub_context: Some("array"), with_escape: false }
- Syntax 'Dockerfile (with bash)' with scope 'source.dockerfile.bash' has unresolved context reference ByScope { scope: <source.shell.bash>, sub_context: None, with_escape: false }
- Syntax 'Dockerfile (with bash)' with scope 'source.dockerfile.bash' has unresolved context reference ByScope { scope: <source.shell.bash>, sub_context: Some("cmd-args"), with_escape: false }
Writing theme set to /home/USER/.cache/bat/themes.bin ... okay
Writing syntax set to /home/USER/.cache/bat/syntaxes.bin ... okay
Writing metadata to folder /home/USER/.cache/bat ... okay
cargo run --release -- cache --build
    Finished `release` profile [optimized] target(s) in 0.14s
     Running `target/release/bat cache --build`
Some referenced contexts could not be found!
- Syntax 'Dockerfile (with bash)' with scope 'source.dockerfile.bash' has unresolved context reference ByScope { scope: <source.json>, sub_context: Some("arrays"), with_escape: false }
Writing theme set to /home/USER/.cache/bat/themes.bin ... okay
Writing syntax set to /home/USER/.cache/bat/syntaxes.bin ... okay
Writing metadata to folder /home/USER/.cache/bat ... okay

Please let me know if there was something different I should have done and i'll try and get to it.

Edit:
Turns out reading is useful. Found the proper section for custom themes/syntaxes.
Yes, this does seem to fix it the error

[keith-hall]

Note to self, reverting the submodule didn't update my local files. In the end I had to:

git submodule deinit -f assets/syntaxes/02_Extra/Docker
git submodule init assets/syntaxes/02_Extra/Docker     
git submodule update assets/syntaxes/02_Extra/Docker     

probably there is a quicker way, but I'm not sure I have really got the hang of submodules yet