Fix missing row names in available_linters()

[IndrajeetPatil]

Closes #1781

library(lintr)
rownames(available_linters())
#>  [1] "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10" "11" "12" "13" "14" "15"
#> [16] "16" "17" "18" "19" "20" "21" "22" "23" "24" "25" "26" "27" "28" "29" "30"
#> [31] "31" "32" "33" "34" "35" "36" "37" "38" "39" "40" "41" "42" "43" "44" "45"
#> [46] "46" "47" "48" "49" "50" "51" "52" "53" "54" "55" "56" "57" "58" "59" "60"
#> [61] "61" "62" "63" "64" "65" "66" "67" "68" "69" "70" "71" "72" "73" "74" "75"
#> [76] "76" "77" "78" "79" "80" "81" "82" "83" "84" "85" "86"

^{Created on 2022-12-08 with reprex v2.0.2}

[codecov-commenter]

Codecov Report

Merging #1813 (8e77a63) into main (a936cf6) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 8e77a63 differs from pull request most recent head 3b033ee. Consider uploading reports for the commit 3b033ee to get more accurate results

@@           Coverage Diff           @@
##             main    #1813   +/-   ##
=======================================
  Coverage   98.84%   98.84%           
=======================================
  Files         111      111           
  Lines        4756     4757    +1     
=======================================
+ Hits         4701     4702    +1     
  Misses         55       55           

Impacted Files	Coverage Δ
R/linter_tags.R	97.43% <100.00%> (+0.06%)	⬆️

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[AshesITR]

Thanks!