docs/install: include the scheduler chapter dynamically

[viniciusferrao]

Use the same dynamic include idiom as the provisioner chapters so new schedulers only need config + templates.

Sponsored-by: VersatusHPC

[github-actions]

🚀 CCache Statistics

Configuration	🐧 RHEL	🦊 openEuler
🖥️ x86_64 / gnu15	🟡 26.11%	🟡 24.53%
🖥️ x86_64 / intel	🟡 27.27%	-
💪 aarch64 / gnu15	🔴 17.39%	🔴 16.14%

📊 Detailed Statistics

openEuler (aarch64)

Cacheable calls:    5383 / 9791 (54.98%)
  Hits:              869 / 5383 (16.14%)
    Direct:          450 /  869 (51.78%)
    Preprocessed:    419 /  869 (48.22%)
  Misses:           4514 / 5383 (83.86%)
Uncacheable calls:  4408 / 9791 (45.02%)
Local storage:
  Cache size (GiB):  0.4 /  5.0 ( 7.58%)
  Hits:              869 / 5383 (16.14%)
  Misses:           4514 / 5383 (83.86%)

openEuler (x86_64)

Cacheable calls:    6483 / 11998 (54.03%)
  Hits:             1590 /  6483 (24.53%)
    Direct:          754 /  1590 (47.42%)
    Preprocessed:    836 /  1590 (52.58%)
  Misses:           4893 /  6483 (75.47%)
Uncacheable calls:  5515 / 11998 (45.97%)
Local storage:
  Cache size (GiB):  0.4 /   5.0 ( 8.24%)
  Hits:             1590 /  6483 (24.53%)
  Misses:           4893 /  6483 (75.47%)

RHEL (aarch64/gnu15)

Cacheable calls:    5198 / 9427 (55.14%)
  Hits:              904 / 5198 (17.39%)
    Direct:          484 /  904 (53.54%)
    Preprocessed:    420 /  904 (46.46%)
  Misses:           4294 / 5198 (82.61%)
Uncacheable calls:  4229 / 9427 (44.86%)
Local storage:
  Cache size (GiB):  0.4 /  5.0 ( 7.54%)
  Hits:              904 / 5198 (17.39%)
  Misses:           4294 / 5198 (82.61%)

RHEL (x86_64/gnu15)

Cacheable calls:    6315 / 11659 (54.16%)
  Hits:             1649 /  6315 (26.11%)
    Direct:          812 /  1649 (49.24%)
    Preprocessed:    837 /  1649 (50.76%)
  Misses:           4666 /  6315 (73.89%)
Uncacheable calls:  5344 / 11659 (45.84%)
Local storage:
  Cache size (GiB):  0.4 /   5.0 ( 8.20%)
  Hits:             1649 /  6315 (26.11%)
  Misses:           4666 /  6315 (73.89%)

RHEL (x86_64/intel)

Cacheable calls:     6476 / 17223 (37.60%)
  Hits:              1766 /  6476 (27.27%)
    Direct:           816 /  1766 (46.21%)
    Preprocessed:     950 /  1766 (53.79%)
  Misses:            4710 /  6476 (72.73%)
Uncacheable calls:  10747 / 17223 (62.40%)
Local storage:
  Cache size (GiB):   0.4 /   5.0 ( 7.02%)
  Hits:              1766 /  6476 (27.27%)
  Misses:            4710 /  6476 (72.73%)

---

🤖 Generated from workflow run 29170603592

[github-actions]

Test Results

 29 files  ±0  29 suites  ±0   46s ⏱️ -6s
 59 tests ±0  53 ✅ ±0  6 💤 ±0  0 ❌ ±0 
105 runs  ±0  97 ✅ ±0  8 💤 ±0  0 ❌ ±0 

Results for commit b77c665. ± Comparison against base commit 30a27e1.

[middelkoopt]

Please integrate this into a single PR (#2654).

[viniciusferrao]

The idea was to keep it easy to be cherrypicked and @adrianreber usually asks. But that's fine. I'll add to the one you mentioned.

Are you sure @middelkoopt because this change isn't only affecting xCAT. It will affect the other provisioners.

[middelkoopt]

I will need to test all the provisioners and would rather do it all at once, but please keep it as a single commit.

[viniciusferrao]

Superseeded by #2654