Ignore update of downgrade compat action in dependabot

[JoshuaLampert]

As discussed in #270 (comment). Is this what you had in mind, @ranocha?

[JoshuaLampert]

Is there a better way to test this other than merging this PR and manually triggering dependabot after that to hope it does not create a new PR bumping the downgrade action?

[github-actions]

Benchmark Results (Julia v1.10)

Time benchmarks

	main	78ee350...	main / 78ee350...
bbm_1d/bbm_1d_basic.jl - rhs!:	13.8 ± 0.3 μs	13.7 ± 0.3 μs	1.01 ± 0.031
bbm_1d/bbm_1d_fourier.jl - rhs!:	0.217 ± 0.011 ms	0.535 ± 0.0097 ms	0.405 ± 0.022
bbm_bbm_1d/bbm_bbm_1d_basic_reflecting.jl - rhs!:	0.0821 ± 0.0012 ms	0.0826 ± 0.00097 ms	0.994 ± 0.019
bbm_bbm_1d/bbm_bbm_1d_dg.jl - rhs!:	0.0348 ± 0.001 ms	0.0349 ± 0.00085 ms	0.996 ± 0.038
bbm_bbm_1d/bbm_bbm_1d_relaxation.jl - rhs!:	27.4 ± 0.45 μs	27.1 ± 0.39 μs	1.01 ± 0.022
bbm_bbm_1d/bbm_bbm_1d_upwind_relaxation.jl - rhs!:	0.0488 ± 0.00052 ms	0.0487 ± 0.00061 ms	1 ± 0.016
hyperbolic_serre_green_naghdi_1d/hyperbolic_serre_green_naghdi_dingemans.jl - rhs!:	4.8 ± 0.67 μs	4.48 ± 0.25 μs	1.07 ± 0.16
kdv_1d/kdv_1d_basic.jl - rhs!:	1.7 ± 0.03 μs	1.62 ± 0.14 μs	1.05 ± 0.092
kdv_1d/kdv_1d_implicit.jl - rhs!:	1.69 ± 0.021 μs	1.58 ± 0.17 μs	1.07 ± 0.12
serre_green_naghdi_1d/serre_green_naghdi_well_balanced.jl - rhs!:	0.2 ± 0.0089 ms	0.2 ± 0.0089 ms	1 ± 0.063
svaerd_kalisch_1d/svaerd_kalisch_1d_dingemans_relaxation.jl - rhs!:	0.146 ± 0.0043 ms	0.15 ± 0.0053 ms	0.978 ± 0.045
time_to_load	1.96 ± 0.0023 s	1.95 ± 0.014 s	1.01 ± 0.0073

Memory benchmarks

	main	78ee350...	main / 78ee350...
bbm_1d/bbm_1d_basic.jl - rhs!:	1 allocs: 4.12 kB	1 allocs: 4.12 kB	1
bbm_1d/bbm_1d_fourier.jl - rhs!:	1 allocs: 4.12 kB	1 allocs: 4.12 kB	1
bbm_bbm_1d/bbm_bbm_1d_basic_reflecting.jl - rhs!:	5 allocs: 1.17 kB	5 allocs: 1.17 kB	1
bbm_bbm_1d/bbm_bbm_1d_dg.jl - rhs!:	10 allocs: 8.62 kB	10 allocs: 8.62 kB	1
bbm_bbm_1d/bbm_bbm_1d_relaxation.jl - rhs!:	2 allocs: 8.25 kB	2 allocs: 8.25 kB	1
bbm_bbm_1d/bbm_bbm_1d_upwind_relaxation.jl - rhs!:	2 allocs: 8.25 kB	2 allocs: 8.25 kB	1
hyperbolic_serre_green_naghdi_1d/hyperbolic_serre_green_naghdi_dingemans.jl - rhs!:	0 allocs: 0 B	0 allocs: 0 B
kdv_1d/kdv_1d_basic.jl - rhs!:	0 allocs: 0 B	0 allocs: 0 B
kdv_1d/kdv_1d_implicit.jl - rhs!:	0 allocs: 0 B	0 allocs: 0 B
serre_green_naghdi_1d/serre_green_naghdi_well_balanced.jl - rhs!:	0.075 k allocs: 0.66 MB	0.075 k allocs: 0.66 MB	1
svaerd_kalisch_1d/svaerd_kalisch_1d_dingemans_relaxation.jl - rhs!:	0.042 k allocs: 0.315 MB	0.042 k allocs: 0.315 MB	1
time_to_load	0.153 k allocs: 14.5 kB	0.153 k allocs: 14.5 kB	1

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[coveralls]

Pull Request Test Coverage Report for Build 19856305351

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 98.467%

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Totals
Change from base Build 19856265829:	0.0%
Covered Lines:	2313
Relevant Lines:	2349

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💛 - Coveralls

[ranocha]

Yes, thanks!

[ranocha]

Is there a better way to test this other than merging this PR and manually triggering dependabot after that to hope it does not create a new PR bumping the downgrade action?

I do not know any...