fix: remediate critical dependency vulnerabilities

[luke-lombardi]

No description provided.

[github-actions]

Benchmark Results

goos: linux
goarch: amd64
pkg: github.com/beam-cloud/blobcache-v2/pkg
cpu: AMD EPYC 7763 64-Core Processor                
BenchmarkBufferPool/size_1MB/WithPool-4         	48799089	        50.24 ns/op	      27 B/op	       1 allocs/op
BenchmarkBufferPool/size_1MB/WithoutPool-4      	   13659	    173451 ns/op	 1048592 B/op	       1 allocs/op
BenchmarkBufferPool/size_4MB/WithPool-4         	51105925	        47.93 ns/op	      31 B/op	       1 allocs/op
BenchmarkBufferPool/size_4MB/WithoutPool-4      	    4743	    578892 ns/op	 4194352 B/op	       2 allocs/op
BenchmarkBufferPool/size_16MB/WithPool-4        	47661922	        46.06 ns/op	      31 B/op	       1 allocs/op
BenchmarkBufferPool/size_16MB/WithoutPool-4     	    2756	    802806 ns/op	16777241 B/op	       2 allocs/op
PASS
ok  	github.com/beam-cloud/blobcache-v2/pkg	16.527s
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Disk cache directory located at: '/tmp/BenchmarkGetContentDiskCache3384559556/001'"}
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Memory cache DISABLED (disk-only mode)"}
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Evicted object: test"}
goos: linux
goarch: amd64
pkg: github.com/beam-cloud/blobcache-v2/pkg
cpu: AMD EPYC 7763 64-Core Processor                
BenchmarkGetContentDiskCache-4   	{"level":"info","time":"2026-07-28T20:07:28Z","message":"Disk cache directory located at: '/tmp/BenchmarkGetContentDiskCache264893602/002'"}
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Memory cache DISABLED (disk-only mode)"}
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Evicted object: test"}
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Disk cache directory located at: '/tmp/BenchmarkGetContentDiskCache3810602818/003'"}
{"level":"info","time":"2026-07-28T20:07:28Z","message":"Memory cache DISABLED (disk-only mode)"}
{"level":"info","time":"2026-07-28T20:07:29Z","message":"Evicted object: test"}
     157	   3979195 ns/op	4216.23 MB/s	17473381 B/op	    1165 allocs/op
PASS
ok  	github.com/beam-cloud/blobcache-v2/pkg	1.154s