Step 4: Rerun the proc-call-vs-yield README sample

Step 3 dropped its "unused block" report, but the README still showed it
ranked first, which would give readers the wrong ranking. The new sample
is from ruby_4.0: yield, then block + yield (1.23x slower), then
block.call (1.41x slower), the same order as 22 of 26 jobs in CI run
35927028164.

Author: JuanVqz

README.md

@@ -1061,23 +1061,21 @@ Comparison:
 
 ```
 $ ruby -v code/proc-and-block/proc-call-vs-yield.rb
-ruby 4.0.0 (2025-12-25 revision 553f1675f3) +PRISM [arm64-darwin24]
+ruby 4.0.7 (2026-09-15 revision 229531a6cf) +PRISM [aarch64-linux]
 Warming up --------------------------------------
-          block.call     2.261M i/100ms
-       block + yield     2.314M i/100ms
-        unused block     3.025M i/100ms
-               yield     2.971M i/100ms
+               yield     2.156M i/100ms
+       block + yield     1.605M i/100ms
+          block.call     1.609M i/100ms
 Calculating -------------------------------------
-          block.call     22.057M (± 6.0%) i/s   (45.34 ns/i) -    110.796M in   5.043129s
-       block + yield     23.280M (± 0.6%) i/s   (42.96 ns/i) -    117.997M in   5.068779s
-        unused block     30.609M (± 1.3%) i/s   (32.67 ns/i) -    154.268M in   5.040991s
-               yield     29.921M (± 0.6%) i/s   (33.42 ns/i) -    151.512M in   5.063842s
+               yield     20.615M (±10.0%) i/s   (48.51 ns/i) -    103.495M in   5.020450s
+       block + yield     16.824M (± 9.2%) i/s   (59.44 ns/i) -     85.066M in   5.056288s
+          block.call     14.608M (±14.3%) i/s   (68.46 ns/i) -     73.995M in   5.065432s
 
 Comparison:
-        unused block: 30608512.5 i/s
-               yield: 29921356.8 i/s - 1.02x  slower
-       block + yield: 23279981.0 i/s - 1.31x  slower
-          block.call: 22056758.6 i/s - 1.39x  slower
+        yield: 20614679.3 i/s
+block + yield: 16823796.9 i/s - 1.23x  slower
+   block.call: 14607819.3 i/s - 1.41x  slower
+
 ```
 
 ### String