fix(size-analysis): Do not upload bundles on forks

[romtsn]

#skip-changelog

Bundles were still being uploaded because distribution is not dependant on auth token presence, hence triggering the upload task

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	353.06 ms	415.78 ms	62.72 ms
Size	1.58 MiB	2.13 MiB	559.54 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
ee747ae	400.46 ms	423.61 ms	23.15 ms
d15471f	379.40 ms	470.76 ms	91.36 ms
9fbb112	359.71 ms	421.85 ms	62.14 ms
bbc35bb	324.88 ms	425.73 ms	100.85 ms
ee747ae	357.79 ms	421.84 ms	64.05 ms
d15471f	310.26 ms	377.04 ms	66.78 ms
ae7fed0	293.84 ms	380.22 ms	86.38 ms
23d6b12	354.10 ms	408.38 ms	54.28 ms
85d7417	347.21 ms	394.35 ms	47.15 ms
fc5ccaf	256.80 ms	322.36 ms	65.56 ms

App size

Revision	Plain	With Sentry	Diff
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
d15471f	1.58 MiB	2.13 MiB	559.54 KiB
9fbb112	1.58 MiB	2.11 MiB	539.18 KiB
bbc35bb	1.58 MiB	2.12 MiB	553.01 KiB
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
d15471f	1.58 MiB	2.13 MiB	559.54 KiB
ae7fed0	1.58 MiB	2.12 MiB	551.77 KiB
23d6b12	1.58 MiB	2.10 MiB	532.31 KiB
85d7417	1.58 MiB	2.10 MiB	533.44 KiB
fc5ccaf	1.58 MiB	2.13 MiB	557.54 KiB